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
81168377
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 275
P-1
B1 = 675000
B2 = 12825000
LL
StatusDateUserResidueShiftSoftware
Verified2017-09-13patgie5F9A6606EEE4300270350502Windows 64-bit,Prime95,v26,(aka We4)
Verified2025-03-24Anton Repko5F9A6606EEE430020gpuowl
History
DateUserTypeResult
2025-03-24Anton RepkoC-LL5F9A6606EEE43002
2017-09-13patgieC-LL5F9A6606EEE43002
2017-04-30arnaudNF-PM1B1=675000, B2=12825000
2016-10-01-anonymous-NFno factor TF: 74-75
2016-10-01-anonymous-NFno factor TF: 73-74
2016-10-01-anonymous-NFno factor TF: 72-73
2016-10-01-anonymous-NFno factor TF: 71-72
2013-07-14SMoffatNFno factor TF: 70-71
2013-06-17frmarNFno factor TF: 69-70
2013-06-11frmarNFno factor TF: 68-69
2013-06-10frmarNFno factor TF: 67-68
2013-01-26Bold_SeekerNFno factor TF: 66-67
2011-02-15S00030NFno factor TF: 65-66
2010-12-12Architects CubedNFno factor TF: 64-65