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:





MnDetails
83880077
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 276
TF target 275
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2026-07-21danielaDLL88.18 %2026-11-052026-11-11
P-1
B1 = 665000
B2 = 12302500
LL
StatusDateUserResidueShiftSoftware
Unverified2018-03-22ANONYMOUSAC0929E84866D1__14612215Windows 64-bit,Prime95,v29.4,build 7
History
DateUserTypeResult
2018-03-22ANONYMOUSC-LLAC0929E84866D1__
2017-10-04Chang Chia-TcheNF-PM1B1=665000, B2=12302500
2017-03-26TheJudgerNFno factor TF: 75-76
2017-02-21Brian BeuningNFno factor TF: 74-75
2017-02-10-anonymous-NFno factor TF: 71-72
2017-02-10-anonymous-NFno factor TF: 72-73
2017-02-10-anonymous-NFno factor TF: 73-74
2013-06-13MatthiasNFno factor TF: 70-71
2013-03-04David BarleyNFno factor TF: 69-70
2013-02-27David BarleyNFno factor TF: 68-69
2013-02-23David BarleyNFno factor TF: 67-68
2013-02-19SMoffatNFno factor TF: 66-67
2012-08-06Carsten KossendeyNFno factor TF: 65-66
2010-12-21Architects CubedNFno factor TF: 64-65