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
3091577
Composite: proven not-prime with Lucas-Lehmer test
No factors below 271
TF target 264
P-1
B1 = 8900000
B2 = 22808664060
ECM
DigitsB1Curves
2550000280 / 280
3025000094 / 640
Estimated T-Level: 25.7
TF below 2^80 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
VerifiedRoger Burton-West2DC1C2C2444637170Windows,Prime95,v14,(aka WQ1)
VerifiedTom Cage2DC1C2C2444637170Mac,John Sweeney,vLL1.0b1,(aka J4)
Verified2000-02-16Nuutti Kuosa2DC1C2C2444637170Linux 32-bit,Prime95,v19,(aka WV2)
Verified2015-05-04MadPoo 🙂2DC1C2C2444637172217381Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2025-07-29Architects CubedNFno factor TF: 70-71
2023-01-31Sid & AndyNF-PM1B1=8900000, B2=22808664060
2022-10-30JossNF-PM1B1=1000000, B2=265074810
2022-09-27JossNF-PM1B1=1000000, B2=118249950
2022-06-02mikrNFno factor TF: 69-70
2021-03-15TJAOINFno factor TF: 68-69
2019-08-08mikrNF-PM1B1=3000000, B2=100000000
2018-08-13ramgeisNFno factor TF: 67-68
2017-05-18Gordon SpenceNFno factor TF: 66-67
2017-03-24JossNF-PM1B1=652294, B2=6522940, E=6
2017-03-20JossNF-PM1B1=543579, B2=5435790, E=6
2017-03-19JossNF-PM1B1=452983, B2=4529830, E=6
2017-03-18JossNF-PM1B1=377486, B2=3774860, E=6
2017-03-16JossNF-PM1B1=314572, B2=3145720, E=6
2017-03-15JossNF-PM1B1=262144, B2=2621440, E=6
2017-02-04JossNF-PM1B1=188743
2017-01-29JossNF-PM1B1=157286
2016-02-23Mark RoseNFno factor TF: 1-60
2015-06-11ThaNFno factor TF: 65-66
2015-05-04MadPoo 🙂C-LL
2DC1C2C244463717
2015-02-07VictordeHollanderNFno factor TF: 64-65
2015-02-07VictordeHollanderNFno factor TF: 63-64
2013-01-07dbaughNFno factor TF: 62-63
2011-11-28Sid & AndyNFno factor TF: 61-62
2009-02-12Sturle SundeNFno factor TF: 60-61
2004-02-14-anonymous-NF-PM1B1=2048, B2=204800
2003-02-24-anonymous-NF-PM1B1=4096, B2=409600, E=12
2003-02-16-anonymous-NF-PM1B1=2048, B2=204800, E=12
2000-02-16-anonymous-C-LL
2DC1C2C244463717