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
25786547
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 270
P-1
B1 = 1612000
B2 = 1728462450
LL
StatusDateUserResidueShiftSoftware
Verified2005-09-22S2642925369E07FB37570DA4001342Windows,Prime95,v23,(aka WZ1)
Verified2012-05-17Dubslow5369E07FB37570DA0CUDALucas v2.00a
Verified2013-07-07JuanMorales5369E07FB37570DA14086885Windows,Prime95,v27.9,build 1
History
DateUserTypeResult
2024-11-20James HeinrichNF-PM1B1=1612000, B2=1728462450
2021-10-17TheJudgerNFno factor TF: 74-75
2021-09-19TheJudgerNFno factor TF: 73-74
2021-08-28TheJudgerNFno factor TF: 72-73
2021-08-28TheJudgerNFno factor TF: 71-72
2021-07-11mikrNFno factor TF: 70-71
2017-03-26ramgeisNFno factor TF: 69-70
2013-07-07JuanMoralesC-LL5369E07FB37570DA
2012-05-17DubslowC-LL5369E07FB37570DA
2012-05-13Jerry HallettNFno factor TF: 68-69
2012-05-05Architects CubedNFno factor TF: 67-68
2005-09-22-anonymous-C-LL5369E07FB37570DA
2005-01-10-anonymous-NF-PM1B1=380000
2004-06-21iPrimeNFno factor TF: 1-67
2004-04-29-anonymous-NFno factor TF: 1-62
2001-08-12Net_ForceNFno factor TF: 1-56