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
79539619Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 276
TF target 275
P-1
B1 = 695000
B2 = 14073750
LL
StatusDateUserResidueShift
Unverified2017-03-01Arthur RosenthalC9A957FCEEBBAA__20646283
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-11-17irowikiLL double-checkLL97.46 % 2025-12-05
History
DateUserTypeResult
2025-07-29Sid & AndyNF
no factor from 2^75 to 2^76
2017-03-01Arthur RosenthalC-LL
C9A957FCEEBBAA__
2016-03-12Kevin JagetNF-PM1
B1=695000, B2=14073750, E=6
2016-03-01apocalypseNF
no factor from 2^74 to 2^75
2016-03-01apocalypseNF
no factor from 2^73 to 2^74
2016-03-01apocalypseNF
no factor from 2^72 to 2^73
2016-03-01apocalypseNF
no factor from 2^71 to 2^72
2013-01-23Houd Al-ObaidliNF
no factor from 2^70 to 2^71
2010-12-21Fred CireraNF
no factor from 2^69 to 2^70
2010-12-16oilwarzonedotcomNF
no factor from 2^68 to 2^69
2010-12-14GrunwalderGIMPNF
no factor from 2^67 to 2^68
2010-12-12Craig MeyersNF
no factor from 2^66 to 2^67
2010-12-12Craig MeyersNF
no factor from 2^65 to 2^66
2010-11-29Architects CubedNF
no factor from 2^64 to 2^65
2009-05-29Architects CubedNF
no factor from 2^63 to 2^64