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
23423441
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 270
P-1
B1 = 503000
B2 = 31387000
LL
StatusDateUserResidueShiftSoftware
VerifiedMarko Heiskanen5DB92BDADA8DE0C118935578Linux 32-bit,Prime95,v23,(aka WZ2)
Verified2011-08-05Dubslow5DB92BDADA8DE0C16594205Windows 64-bit,Prime95,v26.6,build 3
Verified2011-08-12petroele5DB92BDADA8DE0C16656151Windows 64-bit,Prime95,v26.5,build 5
Verified2011-12-13blackivory5DB92BDADA8DE0C111031299Windows,Prime95,v24 final,NT service,(aka Wc5)
History
DateUserTypeResult
2021-10-22TheJudgerNFno factor TF: 74-75
2021-09-19TheJudgerNFno factor TF: 73-74
2021-09-06TheJudgerNFno factor TF: 72-73
2021-09-06TheJudgerNFno factor TF: 71-72
2021-08-27mikrNFno factor TF: 70-71
2021-03-31James HeinrichNF-PM1B1=503000, B2=31387000
2018-08-26ramgeisNFno factor TF: 69-70
2018-01-03VictordeHollanderNFno factor TF: 68-69
2016-06-09VictordeHollanderNFno factor TF: 67-68
2011-12-13blackivoryC-LL5DB92BDADA8DE0C1
2011-08-12petroeleC-LL5DB92BDADA8DE0C1
2011-08-05DubslowC-LL5DB92BDADA8DE0C1
2005-02-12-anonymous-NF-PM1B1=335000
2004-03-01-anonymous-NF-PM1B1=335000
2003-09-09Team Prime RibNFno factor TF: 1-67
2001-09-10Net_ForceNFno factor TF: 1-56