Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
41971463No factors below 274
P-1
B1=510 000
B2=15 045 000
LL
StatusDateUserResidueShift
Verified2009-04-25Alfred WasielewskiBE97C9C60C8ED60A24594968
Verified2017-12-24jingfiredBE97C9C60C8ED60A21196737
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2016-06-18rmk911LL double-checkLL0.0 % 2021-07-052016-07-28
2016-05-08-Anonymous-LL double-check0.0 % 2016-05-082016-06-17
2016-03-28-Anonymous-LL double-checkLL0.0 % 2016-03-282016-05-07
2016-01-29-Anonymous-LL double-checkLL1.6 % 2016-02-162016-03-27
2015-12-17-Anonymous-LL double-checkLL0.1 % 2015-12-192016-01-28
2015-11-05-Anonymous-LL double-check0.0 % 2015-11-052015-12-15
2015-08-26-Anonymous-LL double-check0.0 % 2015-08-262015-10-05
History
DateUserTypeResult
2020-01-24-Anonymous-NFno factor from 2^73 to 2^74
2019-10-04-Anonymous-NFno factor from 2^72 to 2^73
2017-12-24jingfiredC-LLBE97C9C60C8ED60A
2015-08-25GregNFno factor from 2^71 to 2^72
2015-02-21Mark RoseNFno factor from 2^70 to 2^71
2015-01-13chalsallNFno factor from 2^69 to 2^70
2014-03-01LaurVNFno factor from 2^68 to 2^69
2009-04-25Alfred WasielewskiC-LLBE97C9C60C8ED60A
2009-03-08Alfred WasielewskiNF-PM1B1=510000, B2=15045000, E=6
2007-08-14ITSNFno factor to 2^68