>rank | prime |
digits | who | when | comment |
1 | (284211 - 1)/1347377 / 31358793176711980763958121 / 3314641676042347824169591561 |
25291 |
c95 |
Sep 2020 |
Mersenne cofactor, ECPP |
2 | (282939 - 1)/883323903012540278033571819073 |
24938 |
c84 |
Feb 2021 |
Mersenne cofactor, ECPP |
3 | (263703 - 1)/42808417 |
19169 |
c59 |
Jan 2014 |
Mersenne cofactor, ECPP |
4 | (258199 - 1)/237604901713907577052391 |
17497 |
c59 |
Jan 2015 |
Mersenne cofactor, ECPP |
5 | (257131 - 1)/61481396117165983261035042726614288722959856631 |
17152 |
c59 |
Dec 2015 |
Mersenne cofactor, ECPP |
6 | (253381 - 1)/15588960193 / 38922536168186976769 / 155991271597169062945033668006103 |
16008 |
c84 |
Mar 2017 |
Mersenne cofactor, ECPP |
7 | (251487 - 1)/57410994232247 / 17292148963401772464767849635553 |
15455 |
c77 |
Nov 2018 |
Mersenne cofactor, ECPP |
8 | (241681 - 1)/1052945423 / 16647332713153 / 2853686272534246492102086015457 |
12495 |
c77 |
Apr 2015 |
Mersenne cofactor, ECPP |
9 | (241521 - 1)/41602235382028197528613357724450752065089 |
12459 |
c54 |
Aug 2012 |
Mersenne cofactor, ECPP |
10 | (241263 - 1)/(1402943 · 983437775590306674647) |
12395 |
c59 |
Oct 2012 |
Mersenne cofactor, ECPP |
11 | (235339 - 1)/490988430384989040283954404\ 86235033667674267835480981233904512709297747031041 |
10562 |
c77 |
Apr 2015 |
Mersenne cofactor, ECPP |
12 | (232531 - 1)/(65063 · 25225122959) |
9778 |
c60 |
Sep 2012 |
Mersenne cofactor, ECPP |
13 | (232611 - 1)/15148007312464299210917787487318\ 99943932296901864652928732838910515860494755367311 |
9736 |
c90 |
Jul 2018 |
Mersenne cofactor, ECPP |
14 | (229473 - 1)/(5613392570256862943 · 24876264677503329001) |
8835 |
c59 |
Sep 2012 |
Mersenne cofactor, ECPP |
15 | (228771 - 1)/104726441 |
8653 |
c56 |
Feb 2012 |
Mersenne cofactor, ECPP |
16 | (228759 - 1)/226160777 |
8649 |
c60 |
Sep 2012 |
Mersenne cofactor, ECPP |
17 | (226903 - 1)/1113285395642134415541632833178044793 |
8063 |
c55 |
Dec 2011 |
Mersenne cofactor, ECPP |
18 | (225933 - 1)/1343522383641330719274248287 / 5589137403017310421606050379256829183569 |
7740 |
c86 |
Jan 2017 |
Mersenne cofactor |
19 | (225243 - 1)/252431 / 403889 / 43014073 / 449245236879223161338352589831 |
7551 |
c84 |
Dec 2016 |
Mersenne cofactor, ECPP |
20 | (222193 - 1)/1482314857 / 335842152520679489 / 550120409183543541076906984732919 |
6622 |
c90 |
Apr 2018 |
Mersenne cofactor |
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