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
37742851
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 271
P-1
B1 = 410000
B2 = 7380000
LL
StatusDateUserResidueShiftSoftware
Verified2007-04-23David BishopFFC8D02DB680A57D33219804Windows,Prime95,v23,(aka WZ1)
Verified2016-09-21DubslowFFC8D02DB680A57D9441526Linux 64-bit,Prime95,v28.7,build 1
History
DateUserTypeResult
2022-07-17TheJudgerNFno factor TF: 72-73
2022-05-09Architects CubedNFno factor TF: 71-72
2016-09-21DubslowC-LLFFC8D02DB680A57D
2014-11-03chalsallNFno factor TF: 70-71
2014-10-07Architects CubedNFno factor TF: 69-70
2007-04-23-anonymous-C-LLFFC8D02DB680A57D
2007-03-04-anonymous-NFno factor TF: 1-69
2007-03-04-anonymous-NF-PM1B1=410000, B2=7380000
2006-05-12-anonymous-NFno factor TF: 1-67