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

PrimeNet Exponent Status

Exponent Range:





MnDetails
84008921
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 276
TF target 275
P-1
B1 = 670000
B2 = 13232500
LL
StatusDateUserResidueShiftSoftware
Unverified2018-11-29tjr6AE59252406E1D__1154584Windows 64-bit,Prime95,v29.4,build 5
History
DateUserTypeResult
2018-11-29tjrC-LL6AE59252406E1D__
2017-04-30TheJudgerNF-PM1B1=670000, B2=13232500, E=12
2017-03-26TheJudgerNFno factor TF: 75-76
2017-02-11Brian BeuningNFno factor TF: 74-75
2017-02-04RichD0NFno factor TF: 73-74
2016-10-16Gordon BowerNFno factor TF: 72-73
2016-10-16Gordon BowerNFno factor TF: 71-72
2013-06-29Norman LeyNFno factor TF: 70-71
2013-03-02TraderNFno factor TF: 69-70
2013-02-25TraderNFno factor TF: 68-69
2013-02-21SMoffatNFno factor TF: 67-68
2012-05-03c10ck3rNFno factor TF: 66-67
2012-05-03c10ck3rNFno factor TF: 65-66
2010-12-08Architects CubedNFno factor TF: 64-65