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
78800879Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 275
TF target 275
P-1
B1 = 690000
B2 = 13972500
LL
StatusDateUserResidueShift
Unverified2017-11-22Sergey Nosov07DEAB57555DE6__6016975
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-04-28ChrisKimLL double-checkLL51.20 % 2025-05-10
History
DateUserTypeResult
2017-11-22Sergey NosovC-LL
07DEAB57555DE6__
2015-12-20TheJudgerNF-PM1
B1=690000, B2=13972500, E=12
2015-12-09dh1NF
no factor from 2^74 to 2^75
2015-12-09dh1NF
no factor from 2^73 to 2^74
2015-12-021997rj7NF
no factor from 2^72 to 2^73
2013-07-29ahmeraliNF
no factor to 2^72
2013-05-03c10ck3rNF
no factor from 2^68 to 2^69
2012-05-30-Anonymous-NF
no factor from 2^67 to 2^68
2011-04-26Carsten KossendeyNF
no factor from 2^65 to 2^67
2010-11-19riccardo ubertiNF
no factor from 2^64 to 2^65