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
80916767
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 276
TF target 275
P-1
B1 = 680000
B2 = 13600000
LL
StatusDateUserResidueShiftSoftware
Unverified2018-08-10Jouni MakkonenEA92DC3E937DA9__6099234Linux 32-bit,Prime95,v28.10,build 1
History
DateUserTypeResult
2025-10-15ElectricBillNFno factor TF: 75-76
2024-05-10James HeinrichNFno factor TF: 68-69
2018-08-10Jouni MakkonenC-LLEA92DC3E937DA9__
2017-03-24Brian BeuningNF-PM1B1=680000, B2=13600000, E=6
2016-10-30BdotNFno factor TF: 74-75
2016-10-27Judge HaleNFno factor TF: 73-74
2013-06-18Juergen KampmeierNFno factor TF: 72-73
2013-06-18Juergen KampmeierNFno factor TF: 71-72
2013-06-18Juergen KampmeierNFno factor TF: 70-71
2011-02-26HighPriceRanchNFno factor TF: 69-70
2011-02-22lindedNFno factor TF: 68-69
2011-02-19tmorrowNFno factor TF: 67-68
2011-02-15KaliNFno factor TF: 66-67
2011-02-09thilliarNFno factor TF: 65-66
2010-12-11Architects CubedNFno factor TF: 64-65