Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
79805221Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 275
P-1
B1 = 665000
B2 = 12967500
LL
StatusDateUserResidueShift
Verified2017-02-03-Anonymous-03EF60A8A34517053135864
Verified2025-01-10Corey03EF60A8A345170555141408
History
DateUserTypeResult
2025-01-10CoreyC-LL
03EF60A8A3451705
2017-02-03-Anonymous-C-LL
03EF60A8A3451705
2016-11-13ATHNF-PM1
B1=665000, B2=12967500, E=6
2016-08-24-Anonymous-NF
no factor from 2^74 to 2^75
2016-08-24-Anonymous-NF
no factor from 2^73 to 2^74
2016-08-24-Anonymous-NF
no factor from 2^72 to 2^73
2016-03-03Stef42NF
no factor from 2^71 to 2^72
2013-07-14processinfoNF
no factor from 2^70 to 2^71
2013-04-10-Anonymous-NF
no factor from 2^69 to 2^70
2013-01-23-Anonymous-NF
no factor from 2^68 to 2^69
2012-11-20AxelssonNF
no factor from 2^67 to 2^68
2011-02-08KarlMJNF
no factor from 2^66 to 2^67
2010-12-07symalladNF
no factor from 2^65 to 2^66
2010-11-30Architects CubedNF
no factor from 2^64 to 2^65
2009-05-25Architects CubedNF
no factor from 2^63 to 2^64