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
78028409Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 276
TF target 275
P-1
B1 = 730000
B2 = 15330000
LL
StatusDateUserResidueShift
Unverified2016-11-10InGameBitcoin2A362C5007ADEA__50179355
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-05-23metaphysisLL double-checkLL75.96 % 2025-07-30
History
DateUserTypeResult
2024-02-13Sid & AndyNF
no factor from 2^75 to 2^76
2016-11-10InGameBitcoinC-LL
2A362C5007ADEA__
2016-04-05Mark RoseNF
no factor from 2^64 to 2^65
2016-01-28endless_mikeNF
no factor from 2^74 to 2^75
2014-11-30TheJudgerNF-PM1
B1=730000, B2=15330000, E=6
2014-01-18snme2pm1NF
no factor from 2^73 to 2^74
2013-12-18snme2pm1NF
no factor from 2^72 to 2^73
2013-10-22snme2pm1NF
no factor from 2^71 to 2^72
2013-05-26Chih-Wei HuangNF
no factor from 2^70 to 2^71
2013-02-11SMoffatNF
no factor from 2^69 to 2^70
2013-02-11Clown_RoyalNF
no factor from 2^68 to 2^69
2012-04-02Bio1ogicsNF
no factor from 2^67 to 2^68
2011-05-06Carsten KossendeyNF
no factor from 2^66 to 2^67
2010-10-17VictorNF
no factor from 2^65 to 2^66