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
76982383Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 715000
B2 = 15015000
LL
StatusDateUserResidueShift
Verified2016-09-10EBCBD8B045039FEEF146611810
Verified2025-05-16flaqCBD8B045039FEEF152716012
History
DateUserTypeResult
2025-05-16flaqC-LL
CBD8B045039FEEF1
2016-09-10EBC-LL
CBD8B045039FEEF1
2016-04-02Mark RoseNF
no factor from 2^62 to 2^64
2016-02-12Brian BeuningNF
no factor from 2^74 to 2^75
2014-09-21TheJudgerNF-PM1
B1=715000, B2=15015000, E=12
2014-09-14NickOfTimeNF
no factor from 2^73 to 2^74
2014-09-14NickOfTimeNF
no factor from 2^72 to 2^73
2014-09-14NickOfTimeNF
no factor from 2^71 to 2^72
2013-01-01Per JessenNF
no factor from 2^70 to 2^71
2010-12-18Helmut ZulusNF
no factor from 2^69 to 2^70
2010-12-13GnorfeNF
no factor from 2^68 to 2^69
2010-12-12Serhat SakaryaNF
no factor from 2^67 to 2^68
2010-12-12Craig MeyersNF
no factor from 2^66 to 2^67
2010-10-04subgeniusNF
no factor from 2^65 to 2^66
2010-10-01garoNF
no factor from 2^64 to 2^65