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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
76804397Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 665000
B2 = 13300000
LL
StatusDateUserResidueShift
Verified2017-12-08lozcs804C3F7CAE55938C35728379
Verified2025-07-14Luke Durant804C3F7CAE55938C0
History
DateUserTypeResult
2025-07-14Luke DurantC-LL
804C3F7CAE55938C
2024-08-14tbusbyNF
no factor from 2^73 to 2^74
2017-12-08lozcsC-LL
804C3F7CAE55938C
2016-05-01TheJudgerNF-PM1
B1=665000, B2=13300000, E=12
2016-04-23AirSquirrelsNF
no factor from 2^74 to 2^75
2016-04-18Judge HaleNF
no factor from 2^73 to 2^74
2016-04-02Mark RoseNF
no factor from 2^62 to 2^64
2012-07-27DRHNF
no factor from 2^72 to 2^73
2012-07-27DRHNF
no factor from 2^71 to 2^72
2012-07-27DRHNF
no factor from 2^70 to 2^71
2010-10-09Charles A. MorrisNF
no factor from 2^69 to 2^70
2010-10-07Ethan O'ConnorNF
no factor from 2^68 to 2^69
2010-10-07CreweNetNF
no factor from 2^67 to 2^68
2010-09-23subgeniusNF
no factor from 2^66 to 2^67
2010-09-21Iván ArribasNF
no factor from 2^65 to 2^66
2010-09-17Claus ReibensteinNF
no factor from 2^64 to 2^65