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
81262039
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 275
TF target 275
P-1
B1 = 690000
B2 = 14145000
LL
StatusDateUserResidueShiftSoftware
Unverified2018-09-14-anonymous-E265FD5EBE3E85__8868699Windows 64-bit,Prime95,v27.9,build 1
History
DateUserTypeResult
2018-09-14-anonymous-C-LLE265FD5EBE3E85__
2016-11-06TheJudgerNF-PM1B1=690000, B2=14145000, E=12
2016-10-30-anonymous-NFno factor TF: 74-75
2016-10-30-anonymous-NFno factor TF: 73-74
2016-09-16Judge HaleNFno factor TF: 72-73
2016-09-16Judge HaleNFno factor TF: 71-72
2011-02-19UngelovendeNFno factor TF: 70-71
2011-02-19UngelovendeNFno factor TF: 69-70
2011-02-19UngelovendeNFno factor TF: 68-69
2011-02-19UngelovendeNFno factor TF: 67-68
2011-02-19UngelovendeNFno factor TF: 65-67
2010-12-12Architects CubedNFno factor TF: 64-65