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    AUTHORPÆDIA is hosted by Authorpædia Foundation, Inc. a U.S. non-profit organization.

P. T. Deutermann

The table below lists the largest currently known prime numbers and probable primes (PRPs) as tracked by the PrimePages and by Henri & Renaud Lifchitz's PRP Records. Numbers with more than 2,000,000 digits are shown.

Largest known primes

These numbers have been proved prime by computer with a primality test for their form, for example the Lucas–Lehmer primality test for Mersenne numbers. “!” is the factorial, “#” is the primorial, and is the third cyclotomic polynomial, defined as .


Rank[1][2] Number Discovery date Decimal digits
1 2136279841 − 1 12 October 2024 41,024,320
2 282589933 − 1 7 December 2018 24,862,048
3 277232917 − 1 26 December 2017 23,249,425
4 274207281 − 1 7 January 2016 22,338,618
5 257885161 − 1 25 January 2013 17,425,170
6 243112609 − 1 23 August 2008 12,978,189
7 242643801 − 1 4 June 2009 12,837,064
8 2 October 2023 11,981,518
9 31 May 2023 11,887,192
10 237156667 − 1 6 September 2008 11,185,272
11 232582657 − 1 4 September 2006 9,808,358
12 10223×231172165 + 1 31 October 2016 9,383,761
13 230402457 − 1 15 December 2005 9,152,052
14 4×511786358 + 1 1 October 2024 8,238,312
15 225964951 − 1 18 February 2005 7,816,230
16 4052186×694052186 + 1 16 April 2025 7,451,366
17 69×224612729 − 1 13 August 2024 7,409,172
18 224036583 − 1 15 May 2004 7,235,733
19 107347×223427517 − 1 4 August 2024 7,052,391
20 3×223157875 − 1 25 June 2025 6,971,216
21 38432361048576 + 1 17 December 2024 6,904,556
22 3×222103376 − 1 30 September 2024 6,653,780
23 19637361048576 + 1 24 September 2022 6,598,776
24 19517341048576 + 1 9 August 2022 6,595,985
25 202705×221320516 + 1 25 November 2021 6,418,121
26 220996011 − 1 17 November 2003 6,320,430
27 10590941048576 + 1 31 October 2018 6,317,602
28 3×220928756 − 1 5 July 2023 6,300,184
29 9194441048576 + 1 29 August 2017 6,253,210
30 81×220498148 + 1 13 June 2023 6,170,560
31 7×220267500 + 1 21 July 2022 6,101,127
32 4×58431178 + 1 2 January 2024 5,893,142
33 168451×219375200 + 1 17 September 2017 5,832,522
34 69×219374980 − 1 3 July 2022 5,832,452
35 3×218924888 − 1 24 March 2022 5,696,990
36 69×218831865 − 1 16 December 2021 5,668,959
37 2×311879700 + 1 22 June 2024 5,668,058
38 97139×218397548 − 1 23 April 2023 5,538,219
39 7×218233956 + 1 1 October 2020 5,488,969
40 3×218196595 − 1 8 January 2022 5,477,722
41 4×311279466 + 1 10 September 2024 5,381,674
42 3×217748034 − 1 6 September 2021 5,342,692
43 23 February 2017 5,338,805
44 3622×57558139 − 1 18 February 2022 5,282,917
45 7×66772401 + 1 9 September 2019 5,269,954
46 2×310852677 + 1 8 January 2023 5,178,044
47 8508301×217016603 − 1 21 March 2018 5,122,515
48 8×105112848 − 1 30 January 2024 5,112,848
49 13×216828072 + 1 11 October 2023 5,065,756
50 3×216819291 − 1 20 January 2021 5,063,112
51 5287180×310574360 − 1 3 November 2024 5,045,259
52 3×216408818 + 1 25 October 2020 4,939,547
53 2329989×216309923 − 1 13 February 2024 4,909,783
54 69×215866556 + 1 20 August 2021 4,776,312
55 2036×310009192 + 1 15 February 2024 4,775,602
56 2525332×732525332 + 1 28 August 2021 4,705,888
57 1419499×215614489 + 1 9 February 2024 4,700,436
58 11×215502315 + 1 8 January 2023 4,666,663
59 (102332974 + 1)2 − 2 20 February 2024 4,665,949
60 37×215474010 + 1 8 November 2022 4,658,143
61 93839×215337656 − 1 28 November 2022 4,617,100
62 215317227+27658614 + 1 31 July 2020 4,610,945
63 13×215294536 + 1 30 September 2023 4,604,116
64 6×56546983 + 1 13 June 2020 4,576,146
65 4788920×39577840 − 1 14 February 2024 4,569,798
66 31×215145093 − 1 9 February 2025 4,559,129
67 69×214977631 − 1 3 December 2021 4,508,719
68 192971×214773498 − 1 7 March 2021 4,447,272
69 4×39214845 + 1 10 September 2024 4,396,600
70 9145334×39145334 + 1 25 December 2023 4,363,441
71 4×56181673 − 1 15 July 2022 4,320,805
72 396101×214259638 − 1 3 February 2024 4,292,585
73 6962×312863120 − 1 29 February 2020 4,269,952
74 37×214166940 + 1 24 June 2022 4,264,676
75 99739×214019102 + 1 24 December 2019 4,220,176
76 69×213832885 − 1 17 January 2022 4,164,116
77 9562633# + 1 25 June 2025 4,151,498
78 404849×213764867 + 1 10 March 2021 4,143,644
79 25×213719266 + 1 20 September 2022 4,129,912
80 81×213708272 + 1 11 October 2022 4,126,603
81 2740879×213704395 − 1 26 October 2019 4,125,441
82 479216×38625889 − 1 16 November 2019 4,115,601
83 13×213584543 − 1 30 May 2025 4,089,357
84 31×213514933 − 1 9 February 2025 4,068,402
85 30 January 2017 4,055,114
86 81×213470584 + 1 9 October 2022 4,055,052
87 213466917 − 1 14 November 2001 4,053,946
88 5778486×55778486 + 1 15 August 2024 4,038,996
89 9×213334487 + 1 31 March 2020 4,014,082
90 206039×213104952 − 1 26 April 2021 3,944,989
91 2805222×55610444 + 1 2 September 2019 3,921,539
92 5128×222919993 + 1 5 December 2024 3,919,869
93 19249×213018586 + 1 26 March 2007 3,918,990
94 2293×212918431 − 1 13 February 2021 3,888,839
95 81×212804541 + 1 19 September 2022 3,854,553
96 67612×55501582 + 1 8 April 2025 3,845,446
97 15852200524288 + 1 9 July 2025 3,774,921
98 4×55380542 + 1 22 February 2023 3,760,839
99 13520762524288 + 1 25 February 2025 3,738,699
100 13427472524288 + 1 3 March 2025 3,737,122
101 9×212406887 + 1 29 March 2020 3,734,847
102 12900356524288 + 1 22 January 2025 3,728,004
103 12693488524288 + 1 6 January 2025 3,724,323
104 11937916524288 + 1 5 October 2024 3,710,349
105 7×212286041 − 1 10 June 2023 3,698,468
106 10913140524288 + 1 19 June 2024 3,689,913
107 69×212231580 − 1 27 July 2021 3,682,075
108 27×212184319 + 1 6 February 2021 3,667,847
109 9332124524288 + 1 22 June 2024 3,654,278
110 8630170524288 + 1 13 April 2024 3,636,472
111 863282×55179692 − 1 17 October 2024 3,620,456
112 670490×123352450 − 1 17 October 2024 3,617,907
113 4×37578378 + 1 9 September 2024 3,615,806
114 11×211993994 − 1 15 August 2024 3,610,554
115 3761×211978874 − 1 6 July 2022 3,606,004
116 95×211954552 − 1 28 May 2024 3,598,681
117 259072×55136295 − 1 28 October 2024 3,590,122
118 3×211895718 − 1 23 June 2015 3,580,969
119 37×211855148 + 1 30 May 2022 3,568,757
120 6339004524288 + 1 8 June 2023 3,566,218
121 763795×64582771 + 1 11 December 2023 3,566,095
122 5897794524288 + 1 18 December 2022 3,549,792
123 3×211731850 − 1 13 March 2015 3,531,640
124 69×211718455 − 1 4 December 2020 3,527,609
125 8629×211708579 − 1 19 September 2024 3,524,638
126 41×211676439 + 1 20 June 2022 3,514,960
127 4896418524288 + 1 15 May 2022 3,507,424
128 81×211616017 + 1 30 August 2022 3,496,772
129 69×211604348 − 1 4 December 2020 3,493,259
130 4450871×64450871 + 1 17 September 2023 3,463,458
131 9×211500843 + 1 13 March 2020 3,462,100
132 3×211484018 − 1 22 November 2014 3,457,035
133 193997×211452891 + 1 3 April 2018 3,447,670
134 29914×54930904 + 1 27 September 2024 3,446,559
135 3638450524288 + 1 29 May 2020 3,439,810
136 9221×211392194 − 1 7 February 2021 3,429,397
137 9×211366286 + 1 26 March 2020 3,421,594
138 5×211355764 − 1 2 October 2021 3,418,427
139 732050×64392301 + 1 9 September 2023 3,417,881
140 3214654524288 + 1 24 December 2019 3,411,613
141 632760! − 1 20 October 2024 3,395,992
142 146561×211280802 − 1 16 November 2020 3,395,865
143 51208×54857576 + 1 6 June 2024 3,395,305
144 2985036524288 + 1 18 September 2019 3,394,739
145 4591×211270837 − 1 2 January 2025 3,392,864
146 6929×211255424 − 1 7 July 2022 3,388,225
147 2877652524288 + 1 29 June 2019 3,386,397
148 2788032524288 + 1 17 April 2019 3,379,193
149 2733014524288 + 1 18 March 2019 3,374,655
150 9×211158963 + 1 13 March 2020 3,359,184
151 9271×211134335 − 1 17 January 2021 3,351,773
152 136804×54777253 − 1 1 March 2024 3,339,162
153 2312092524288 + 1 4 August 2018 3,336,572
154 987324×481974648 − 1 12 October 2024 3,319,866
155 2061748524288 + 1 20 March 2018 3,310,478
156 1880370524288 + 1 15 January 2018 3,289,511
157 27×210902757 − 1 7 March 2022 3,282,059
158 3×210829346 + 1 14 January 2014 3,259,959
159 11×210803449 + 1 29 May 2022 3,252,164
160 11×210797109 + 1 29 May 2022 3,250,255
161 7×210612737 − 1 19 May 2022 3,194,154
162 7351117# + 1 14 September 2024 3,191,401
163 37×210599476 + 1 17 June 2022 3,190,762
164 5×210495620 − 1 26 September 2021 3,159,498
165 30 June 2023 3,153,105
166 5×210349000 − 1 26 September 2021 3,115,361
167 17 January 2017 3,107,335
168 52922×54399812 − 1 3 August 2023 3,075,342
169 14 January 2017 3,068,389
170 177742×54386703 − 1 24 July 2023 3,066,180
171 4×36402015 + 1 9 September 2024 3,054,539
172 874208×541748416 − 1 26 September 2019 3,028,951
173 475856524288 + 1 8 August 2012 2,976,633
174 2×36236772 + 1 20 December 2022 2,975,697
175 15×39830108 + 1 19 August 2023 2,959,159
176 9×29778263 + 1 5 August 2020 2,943,552
177 198×5581061348 + 1 30 August 2024 2,915,138
178 1806676×411806676 + 1 11 March 2018 2,913,785
179 356926524288 + 1 20 June 2012 2,911,151
180 341112524288 + 1 15 June 2012 2,900,832
181 213988×54138363 − 1 29 November 2022 2,892,597
182 43×29596983 − 1 28 February 2022 2,888,982
183 121×29584444 + 1 18 November 2020 2,885,208
184 15×29482269 − 1 14 August 2024 2,854,449
185 6533299# − 1 18 August 2024 2,835,864
186 11×29381365 + 1 7 March 2020 2,824,074
187 15×29312889 + 1 7 August 2023 2,803,461
188 97×29305542 + 1 10 May 2025 2,801,250
189 93×29235048 + 1 7 May 2025 2,780,029
190 49×29187790 + 1 11 September 2022 2,765,803
191 6369619# + 1 12 August 2024 2,765,105
192 27653×29167433 + 1 8 June 2005 2,759,677
193 6354977# − 1 12 August 2024 2,758,832
194 90527×29162167 + 1 30 June 2010 2,758,093
195 6795×29144320 − 1 31 March 2021 2,752,719
196 31×29088085 − 1 27 August 2024 2,735,788
197 75×29079482 + 1 25 July 2023 2,733,199
198 1323365×1161323365 + 1 18 January 2018 2,732,038
199 57×29075622 − 1 7 August 2022 2,732,037
200 102718281 − 5×101631138 − 5×101087142 − 1 6 August 2024 2,718,281
201 63838×53887851 − 1 19 June 2022 2,717,497
202 13×28989858 + 1 10 March 2020 2,706,219
203 4159×28938471 − 1 19 April 2022 2,690,752
204 273809×28932416 − 1 13 December 2017 2,688,931
205 93×28898285 + 1 4 March 2024 2,678,653
206 2×35570081 + 1 14 February 2020 2,657,605
207 25×28788628 + 1 1 March 2021 2,645,643
208 2038×3661028507 − 1 4 April 2016 2,636,562
209 64598×53769854 − 1 14 June 2022 2,635,020
210 63×28741225 + 1 6 May 2024 2,631,373
211 8×785900325 + 1 4 June 2022 2,606,325
212 17×28636199 + 1 17 February 2021 2,599,757
213 75898524288 + 1 19 November 2011 2,558,647
214 25×28456828 + 1 27 January 2021 2,545,761
215 39×28413422 + 1 23 January 2021 2,532,694
216 31×28348000 + 1 19 January 2021 2,513,000
217 27×28342438 − 1 1 February 2021 2,511,326
218 3867×28261084 − 1 14 April 2021 2,486,838
219 101×28152967 + 1 2 December 2023 2,454,290
220 9×28128075 − 1 8 July 2025 2,446,796
221 273662×53493296 − 1 7 December 2021 2,441,715
222 81×28109236 + 1 9 September 2022 2,441,126
223 11×28103463 + 1 6 March 2020 2,439,387
224 102818×53440382 − 1 8 October 2021 2,404,729
225 9×27979119 − 1 8 July 2025 2,401,956
226 11×27971110 − 1 25 November 2019 2,399,545
227 27×27963247 + 1 14 January 2021 2,397,178
228 3177×27954621 − 1 13 June 2021 2,394,584
229 39×27946769 + 1 14 January 2021 2,392,218
230 7×63072198 + 1 4 August 2019 2,390,636
231 3765×27904593 − 1 10 January 2021 2,379,524
232 29×27899985 + 1 14 January 2021 2,378,134
233 5113×27895471 − 1 27 November 2022 2,376,778
234 861×27895451 − 1 21 February 2021 2,376,771
235 75×27886683 + 1 4 September 2023 2,374,131
236 2661×27861390 − 1 28 December 2024 2,366,518
237 99×27830910 + 1 24 April 2024 2,357,341
238 28433×27830457 + 1 31 December 2004 2,357,207
239 2589×27803339 − 1 21 August 2022 2,349,043
240 59×27792307 + 1 24 April 2024 2,345,720
241 101×27784453 + 1 24 April 2024 2,343,356
242 95×27778585 + 1 24 April 2024 2,341,590
243 8401×27767655 − 1 24 April 2023 2,338,302
244 9693×27767343 − 1 17 November 2023 2,338,208
245 5×27755002 − 1 23 September 2021 2,334,489
246 2945×27753232 − 1 27 November 2022 2,333,959
247 2×836798431 + 1 10 September 2024 2,333,181
248 63×27743186 + 1 24 April 2024 2,330,934
249 2545×27732265 − 1 13 January 2021 2,327,648
250 5539×27730709 − 1 15 January 2021 2,327,180
251 4817×27719584 − 1 13 June 2021 2,323,831
252 183×558842752 + 1 23 August 2024 2,314,734
253 1341174×531341174 + 1 21 August 2017 2,312,561
254 9467×27680034 − 1 20 February 2022 2,311,925
255 45×27661004 + 1 13 December 2020 2,306,194
256 15×27619838 + 1 6 December 2020 2,293,801
257 3597×27580693 − 1 10 January 2021 2,282,020
258 5256037# + 1 6 August 2024 2,281,955
259 3129×27545557 − 1 14 March 2023 2,271,443
260 7401×27523295 − 1 21 February 2021 2,264,742
261 45×27513661 + 1 12 November 2020 2,261,839
262 11 January 2017 2,259,865
263 2739×27483537 − 1 1 May 2025 2,252,773
264 9×27479919 − 1 3 June 2023 2,251,681
265 1875×27474308 − 1 21 August 2022 2,249,995
266 69×27452023 + 1 23 March 2023 2,243,285
267 1281879×27447178 + 1 27 December 2023 2,241,831
268 9107×27417464 − 1 3 May 2025 2,232,884
269 4×53189669 − 1 12 July 2022 2,229,484
270 29×27374577 + 1 27 October 2020 2,219,971
271 2653×27368343 − 1 18 September 2024 2,218,096
272 21555×27364128 − 1 4 September 2024 2,216,828
273 3197×27359542 − 1 27 November 2022 2,215,447
274 109838×53168862 − 1 13 August 2020 2,214,945
275 95×27354869 + 1 25 September 2023 2,214,039
276 101×27345194 − 1 5 October 2019 2,211,126
277 85×27333444 + 1 25 September 2023 2,207,589
278 15×27300254 + 1 25 October 2020 2,197,597
279 422429! + 1 21 February 2022 2,193,027
280 1759×27284439 − 1 28 August 2021 2,192,838
281 1909683×141909683 + 1 27 May 2023 2,188,748
282 737×27269322 − 1 10 August 2017 2,188,287
283 6909×27258896 − 1 18 September 2024 2,185,150
284 93×27241494 + 1 25 September 2023 2,179,909
285 118568×53112069 + 1 1 May 2020 2,175,248
286 4215×27221386 − 1 27 December 2024 2,173,858
287 40×257901632 + 1 11 September 2024 2,172,875
288 1685×27213108 − 1 13 April 2025 2,171,366
289 580633×27208783 − 1 15 February 2024 2,170,066
290 6039×27207973 − 1 24 March 2021 2,169,820
291 502573×27181987 − 1 4 October 2014 2,162,000
292 402539×27173024 − 1 2 October 2014 2,159,301
293 3343×27166019 − 1 29 September 2016 2,157,191
294 4137×27132569 − 1 11 April 2025 2,147,121
295 161041×27107964 + 1 6 January 2015 2,139,716
296 294×213918952 − 1 19 September 2023 2,139,672
297 27×27046834 + 1 11 October 2018 2,121,310
298 1759×27046791 − 1 28 August 2021 2,121,299
299 327×27044001 − 1 13 January 2021 2,120,459
300 5×27037188 − 1 22 September 2021 2,118,406
301 3×27033641 + 1 21 February 2011 2,117,338
302 625783×27031319 − 1 10 February 2024 2,116,644
303 33661×27031232 + 1 30 October 2007 2,116,617
304 6 January 2017 2,114,016
305 207494×53017502 − 1 16 March 2020 2,109,149
306 15×26993631 − 1 25 August 2021 2,105,294
307 8943501×26972593 − 1 8 January 2022 2,098,967
308 6020095×26972593 − 1 4 September 2022 2,098,967
309 26972593 − 1 1 June 1999 2,098,960
310 273×26963847 − 1 16 November 2022 2,096,330
311 6219×26958945 − 1 7 January 2021 2,094,855
312 51×26945567 + 1 26 May 2020 2,090,826
313 8×102084563 − 1 1 June 2025 2,084,564
314 3323×26921196 − 1 18 September 2024 2,083,492
315 238694×52979422 − 1 12 March 2020 2,082,532
316 4×721119849 − 1 7 September 2016 2,079,933
317 129×26900230 + 1 5 June 2025 2,077,179
318 33×26894190 − 1 27 July 2021 2,075,360
319 4778027# − 1 31 July 2024 2,073,926
320 105×26884697 + 1 2 June 2025 2,072,503
321 2345×26882320 − 1 13 April 2022 2,071,789
322 57×26857990 + 1 17 August 2023 2,064,463
323 146264×52953282 − 1 9 March 2020 2,064,261
324 69×26838971 − 1 1 March 2020 2,058,738
325 35816×52945294 − 1 5 March 2020 2,058,677
326 127×26836153 − 1 25 June 2018 2,057,890
327 105×26835099 + 1 26 May 2025 2,057,572
328 19×26833086 + 1 24 October 2020 2,056,966
329 66498472262144 + 1 8 July 2025 2,050,704
330 66342922262144 + 1 4 July 2025 2,050,437
331 66266188262144 + 1 3 July 2025 2,050,305
332 65×26810465 + 1 22 September 2023 2,050,157
333 40597×26808509 − 1 25 December 2013 2,049,571
334 283×26804701 − 1 19 January 2020 2,048,431
335 65136498262144 + 1 20 June 2025 2,048,348
336 64989720262144 + 1 18 June 2025 2,048,091
337 64074894262144 + 1 30 May 2025 2,046,447
338 64010198262144 + 1 30 May 2025 2,046,362
339 63833640262144 + 1 27 May 2025 2,046,047
340 8×102045966 − 1 31 May 2025 2,045,967
341 63784742262144 + 1 26 May 2025 2,045,960
342 63558122262144 + 1 27 May 2025 2,045,555
343 63448958262144 + 1 22 May 2025 2,045,359
344 63286690262144 + 1 19 May 2025 2,045,068
345 62767176262144 + 1 9 May 2025 2,044,129
346 62747994262144 + 1 9 May 2025 2,044,095
347 1861209×26789999 + 1 2 December 2020 2,044,000
348 5817×26789459 − 1 9 January 2021 2,043,835
349 62311952262144 + 1 3 May 2025 2,043,301
350 62199610262144 + 1 5 May 2025 2,043,095
351 62152830262144 + 1 1 May 2025 2,043,010
352 62136706262144 + 1 2 May 2025 2,042,980
353 8435×26786180 − 1 7 January 2021 2,042,848
354 61238184262144 + 1 21 April 2025 2,041,322
355 119×26777781 + 1 18 May 2025 2,040,318
356 59145944262144 + 1 29 March 2025 2,037,364
357 58936230262144 + 1 28 March 2025 2,036,960
358 58870004262144 + 1 28 March 2025 2,036,832
359 58846688262144 + 1 28 March 2025 2,036,787
360 58333324262144 + 1 28 March 2025 2,035,789
361 58288282262144 + 1 28 March 2025 2,035,701
362 57643582262144 + 1 28 March 2025 2,034,435
363 57594478262144 + 1 28 March 2025 2,034,338
364 57478518262144 + 1 28 March 2025 2,034,108
365 57429230262144 + 1 27 March 2025 2,034,111
366 51×26753404 + 1 26 May 2020 2,032,979
367 93×26750726 + 1 18 September 2023 2,032,173
368 56303352262144 + 1 27 March 2025 2,031,757
369 56295176262144 + 1 26 March 2025 2,031,740
370 55952434262144 + 1 26 March 2025 2,031,045
371 55892864262144 + 1 27 March 2025 2,030,920
372 69×26745775 + 1 21 March 2023 2,030,683
373 55702322262144 + 1 27 March 2025 2,030,535
374 55695224262144 + 1 25 March 2025 2,030,520
375 55169618262144 + 1 25 March 2025 2,029,441
376 55007338262144 + 1 25 March 2025 2,029,105
377 54852328262144 + 1 25 March 2025 2,028,784
378 54528918262144 + 1 26 March 2025 2,028,111
379 54044092262144 + 1 24 March 2025 2,027,094
380 53903472262144 + 1 24 March 2025 2,026,797
381 53750036262144 + 1 24 March 2025 2,026,473
382 53616962262144 + 1 28 March 2025 2,026,191
383 53311612262144 + 1 24 March 2025 2,025,540
384 53008094262144 + 1 23 March 2025 2,024,890
385 52648144262144 + 1 21 March 2025 2,024,115
386 52599274262144 + 1 20 March 2025 2,024,009
387 52592976262144 + 1 21 March 2025 2,023,995
388 117×26719464 + 1 10 May 2025 2,022,763
389 51992174262144 + 1 16 March 2025 2,022,687
390 51852794262144 + 1 14 March 2025 2,022,382
391 51714136262144 + 1 13 March 2025 2,022,077
392 51283286262144 + 1 9 March 2025 2,021,124
393 51125138262144 + 1 7 March 2025 2,020,773
394 9995×26711008 − 1 31 December 2020 2,020,219
395 50454356262144 + 1 1 March 2025 2,019,269
396 50449664262144 + 1 28 February 2025 2,019,259
397 50366208262144 + 1 28 February 2025 2,019,070
398 50121532262144 + 1 27 February 2025 2,018,516
399 49536902262144 + 1 25 February 2025 2,017,180
400 49235348262144 + 1 23 February 2025 2,016,485
401 49209090262144 + 1 23 February 2025 2,016,424
402 48055302262144 + 1 18 February 2025 2,013,723
403 47707672262144 + 1 16 February 2025 2,012,896
404 39×26684941 + 1 20 October 2020 2,012,370
405 47351862262144 + 1 15 February 2025 2,012,044
406 47281922262144 + 1 13 February 2025 2,011,876
407 47255958262144 + 1 13 February 2025 2,011,813
408 6679881×26679881 + 1 25 July 2009 2,010,852
409 46831458262144 + 1 11 February 2025 2,010,786
410 46378776262144 + 1 8 February 2025 2,009,680
411 45073202262144 + 1 21 January 2025 2,006,469
412 45007104262144 + 1 19 January 2025 2,006,202
413 44819108262144 + 1 14 January 2025 2,005,786
414 44666524262144 + 1 12 January 2025 2,005,397
415 37×26660841 − 1 30 July 2014 2,005,115
416 44144624262144 + 1 29 December 2024 2,004,059
417 44030166262144 + 1 30 December 2024 2,003,764
418 43330794262144 + 1 3 December 2024 2,001,941
419 39×26648997 + 1 20 October 2020 2,001,550
420 42781592262144 + 1 18 November 2024 2,000,489
421 102000007 − 101127194 − 10872812 − 1 12 January 2024 2,000,007
422 102000005 − 101051046 − 10948958 − 1 6 January 2024 2,000,005


Largest known probable primes (PRPs)

These are probable primes. Primality has not been proven because it is too hard for general numbers of this size but they are expected to be primes. F(n) is the nth Fibonacci number.


Rank[110] Number Discovery date Decimal digits
1 8 May 2021 8,177,207
2 20 April 2021 5,794,777
3 June 2021 4,556,209
4 November 2023 4,069,900
5 213380298 − 27 March 2021 4,027,872
6 September 2013 4,025,533
7 September 2013 4,017,941
8 3 July 2022 3,829,294
9 November 2023 3,804,150
10 10 April 2023 3,789,365
11 July 2020 3,763,995
12 February 2024 3,602,847
13 January 2024 3,452,542
14 December 2024 3,356,362
15 9 July 2020 3,143,811
16 29092392 + 40291 February 2011 2,737,083
17 June 2025 2,644,652
18 October 2023 2,614,858
19 3 June 2024 2,482,834
20 August 2020 2,449,236
21 August 2022 2,388,581
22 50018654465 + 54465500186 August 2024 2,368,940
23 July 2021 2,358,349
24 February 2022 2,307,015
25 December 2023 2,239,990
26 1 March 2018 2,201,714
27 December 2023 2,181,134
28 July 2024 2,174,370
29 F(10367321) 10 August 2024 2,166,642
30 July 2024 2,166,255
31 34532794 + 45327943 October 2023 2,162,693
32 F(10317107) 27 July 2024 2,156,148
33 27 October 2017 2,131,318
34 360834356345 + 356345360834 February 2024 2,003,304
35 360339356572 + 356572360339 May 2024 2,000,656


See also

References

  1. ^ Caldwell, Chris K. "THE LARGEST KNOWN PRIMES (The 5,000 largest known primes)". Retrieved 23 November 2018.
  2. ^ The known primes with 2,000,000 digits or more
  3. ^ "Official press release of 52nd Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 21 October 2024.
  4. ^ "Official press release of 51st Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 7 December 2018.
  5. ^ "Official press release of 50th Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 26 December 2017.
  6. ^ "Official press release of 49th Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 7 January 2016.
  7. ^ "Official press release of 48th Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 25 January 2013.
  8. ^ a b "Official press release of 45th and 46th Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 10 September 2008.
  9. ^ "Official press release of 47th Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 25 January 2013.
  10. ^ "PrimePage Primes: Phi(3, - 516693^1048576)". t5k.org. Retrieved 18 October 2024.
  11. ^ "PrimePage Primes: Phi(3, - 465859^1048576)". t5k.org. Retrieved 18 October 2024.
  12. ^ "Official press release of 44th Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 25 January 2013.
  13. ^ Official announcement of discovery of 10223×231172165 + 1, PrimeGrid
  14. ^ "Official press release of 43rd Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 25 January 2013.
  15. ^ "Official press release of 42nd Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 25 January 2013.
  16. ^ Official announcement of discovery of 4052186×694052186 + 1, PrimeGrid
  17. ^ "Official press release of 41st Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 25 January 2013.
  18. ^ Official announcement of discovery of 3×223157875 − 1, PrimeGrid
  19. ^ Official announcement of discovery of 38432361048576 + 1, PrimeGrid
  20. ^ Official announcement of discovery of 3×222103376 − 1, PrimeGrid
  21. ^ Official announcement of discovery of 19637361048576 + 1, PrimeGrid
  22. ^ Official announcement of discovery of 19517341048576 + 1, PrimeGrid
  23. ^ Official announcement of discovery of 202705×221320516 + 1, PrimeGrid
  24. ^ "Official press release of 40th Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 25 January 2013.
  25. ^ Official announcement of discovery of 10590941048576 + 1, PrimeGrid
  26. ^ Official announcement of discovery of 3×220928756 − 1, PrimeGrid
  27. ^ Official announcement of discovery of 9194441048576 + 1, PrimeGrid
  28. ^ Official announcement of discovery of 168451×219375200 + 1, PrimeGrid
  29. ^ Official announcement of discovery of 3×218924888 − 1, PrimeGrid
  30. ^ Official announcement of discovery of 3×218196595 − 1, PrimeGrid
  31. ^ Official announcement of discovery of 3×217748034 − 1, PrimeGrid
  32. ^ Official announcement of discovery of 8508301×217016603 − 1, PrimeGrid
  33. ^ Official announcement of discovery of 3×216819291 − 1, PrimeGrid
  34. ^ Official announcement of discovery of 3×216408818 + 1, PrimeGrid
  35. ^ Official announcement of discovery of 2525332×732525332 + 1, PrimeGrid
  36. ^ Official announcement of discovery of 99739×214019102 + 1, PrimeGrid
  37. ^ "Official press release of 39th Mersenne prime number". Great Internet Mersenne Prime Search. Retrieved 25 January 2013.
  38. ^ Official announcement of discovery of 2805222×55610444 + 1, PrimeGrid
  39. ^ a b c d e f g h i j k Chris Caldwell, The Largest Known Primes at The PrimePages.
  40. ^ Official announcement of discovery of 67612×55501582 + 1, PrimeGrid
  41. ^ Official announcement of discovery of 15852200524288 + 1, PrimeGrid
  42. ^ Official announcement of discovery of 13520762524288 + 1, PrimeGrid
  43. ^ Official announcement of discovery of 13427472524288 + 1, PrimeGrid
  44. ^ Official announcement of discovery of 12900356524288 + 1, PrimeGrid
  45. ^ Official announcement of discovery of 12693488524288 + 1, PrimeGrid
  46. ^ Official announcement of discovery of 11937916524288 + 1, PrimeGrid
  47. ^ Official announcement of discovery of 10913140524288 + 1, PrimeGrid
  48. ^ Official announcement of discovery of 9332124524288 + 1, PrimeGrid
  49. ^ Official announcement of discovery of 8630170524288 + 1, PrimeGrid
  50. ^ Official announcement of discovery of 3×211895718−1, PrimeGrid
  51. ^ Official announcement of discovery of 6339004524288 + 1, PrimeGrid
  52. ^ Official announcement of discovery of 3×211731850 − 1, PrimeGrid
  53. ^ Official announcement of discovery of 4896418524288 + 1, PrimeGrid
  54. ^ Official announcement of discovery of 3×211484018 − 1, PrimeGrid
  55. ^ Official announcement of discovery of 193997×211452891 + 1, PrimeGrid
  56. ^ Official announcement of discovery of 3638450524288 + 1, PrimeGrid
  57. ^ Official announcement of discovery of 9221×211392194 − 1, PrimeGrid
  58. ^ Official announcement of discovery of 3214654524288 + 1, PrimeGrid
  59. ^ Official announcement of discovery of 146561×211280802 − 1, PrimeGrid
  60. ^ Official announcement of discovery of 2985036524288 + 1, PrimeGrid
  61. ^ Official announcement of discovery of 2877652524288 + 1, PrimeGrid
  62. ^ Official announcement of discovery of 2788032524288 + 1, PrimeGrid
  63. ^ Official announcement of discovery of 2733014524288 + 1, PrimeGrid
  64. ^ Official announcement of discovery of 2312092524288 + 1, PrimeGrid
  65. ^ Official announcement of discovery of 2061748524288 + 1, PrimeGrid
  66. ^ Official announcement of discovery of 1880370524288 + 1, PrimeGrid
  67. ^ Official announcement of discovery of 3×210829346 + 1, PrimeGrid
  68. ^ Official announcement of discovery of 475856524288 + 1, PrimeGrid
  69. ^ Official announcement of discovery of 356926524288 + 1, PrimeGrid
  70. ^ Official announcement of discovery of 341112524288 + 1, PrimeGrid
  71. ^ Official announcement of discovery of 121×29584444 + 1, PrimeGrid
  72. ^ Official announcement of discovery of 1323365×1161323365 + 1, PrimeGrid
  73. ^ Official announcement of discovery of 63838×53887851 − 1, PrimeGrid
  74. ^ Official announcement of discovery of 273809×28932416 − 1, PrimeGrid
  75. ^ Official announcement of discovery of 25×28788628 + 1, PrimeGrid
  76. ^ a b c "CRUS - Proven Conjectures". www.noprimeleftbehind.net.
  77. ^ Official announcement of discovery of 17×28636199 + 1, PrimeGrid
  78. ^ Official announcement of discovery of 75898524288 + 1, PrimeGrid
  79. ^ Official announcement of discovery of 25×28456828 + 1, PrimeGrid
  80. ^ Official announcement of discovery of 39×28413822 + 1, PrimeGrid
  81. ^ Official announcement of discovery of 31×28348000 + 1, PrimeGrid
  82. ^ Official announcement of discovery of 27×28342438 − 1, PrimeGrid
  83. ^ Official announcement of discovery of 273662×53493296 + 1, PrimeGrid
  84. ^ 102818×53440382 − 1, PrimeGrid
  85. ^ Official announcement of discovery of 27×27963247 + 1, PrimeGrid
  86. ^ Official announcement of discovery of 39×27946769 + 1, PrimeGrid
  87. ^ Official announcement of discovery of 29×27899985 + 1, PrimeGrid
  88. ^ Official announcement of discovery of 1341174×531341174 + 1, PrimeGrid
  89. ^ Official announcement of discovery of 45×27661004 + 1, PrimeGrid
  90. ^ Official announcement of discovery of 15×27619838 + 1, PrimeGrid
  91. ^ Official announcement of discovery of 45×27513661 + 1, PrimeGrid
  92. ^ Official announcement of discovery of 29×27374577 + 1, PrimeGrid
  93. ^ 109838×53168862 − 1, PrimeGrid
  94. ^ Official announcement of discovery of 29×27300254 + 1, PrimeGrid
  95. ^ 118568×53112069 + 1, PrimeGrid
  96. ^ Official announcement of discovery of 502573×27181987 − 1, PrimeGrid
  97. ^ Official announcement of discovery of 402539×27173024 − 1, PrimeGrid
  98. ^ Official announcement of discovery of 161041×27107964 + 1, PrimeGrid
  99. ^ Official announcement of discovery of 27×27046834 + 1, PrimeGrid
  100. ^ Official announcement of discovery of 3×27033641 + 1, PrimeGrid
  101. ^ GIMPS press release, GIMPS Finds First Million-Digit Prime. Retrieved on 2008-01-04.
  102. ^ 238694×52979422 − 1, PrimeGrid
  103. ^ 146264×52953282 − 1, PrimeGrid
  104. ^ 35816×52945294 − 1, PrimeGrid
  105. ^ Official announcement of discovery of 19×26833086 + 1, PrimeGrid
  106. ^ Official announcement of discovery of 40597×26808509 − 1, PrimeGrid
  107. ^ Official announcement of discovery of 39×26684941 + 1, PrimeGrid
  108. ^ Official announcement of discovery of 6679881×26679881 + 1, PrimeGrid
  109. ^ Official announcement of discovery of 39×26648997 + 1, PrimeGrid
  110. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj Henri Lifchitz & Renaud Lifchitz, Probable Primes Top 10000, primenumbers.net