Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
82076297Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 276
TF target 275
P-1
B1 = 700000
B2 = 14350000
LL
StatusDateUserResidueShift
Unverified2018-04-12patgie776326D7B2E360__65603748
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-10-09ANONYMOUSLL double-check0.00 % 2025-10-09
History
DateUserTypeResult
2024-08-25Jarod McClintockNF
no factor from 2^75 to 2^76
2018-04-12patgieC-LL
776326D7B2E360__
2017-08-27TheJudgerNF-PM1
B1=700000, B2=14350000, E=12
2016-11-27electron1897NF
no factor from 2^74 to 2^75
2016-11-26electron1897NF
no factor from 2^73 to 2^74
2016-11-26electron1897NF
no factor from 2^72 to 2^73
2016-11-26electron1897NF
no factor from 2^71 to 2^72
2013-11-05SMoffatNF
no factor from 2^70 to 2^71
2013-02-23Kirillov YuryNF
no factor from 2^69 to 2^70
2013-02-15KoekieNF
no factor from 2^68 to 2^69
2013-02-13Bruce A MetcalfNF
no factor from 2^67 to 2^68
2013-02-07Ömer Faruk IRMAKNF
no factor from 2^66 to 2^67
2012-08-28Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-12-16Architects CubedNF
no factor from 2^64 to 2^65