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
3365707
Composite: proven not-prime with Lucas-Lehmer test
No factors below 271
TF target 264
P-1
B1 = 6200000
B2 = 21554723190
ECM
DigitsB1Curves
2550000255 / 280
Estimated T-Level: 24.6
TF below 2^77 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
VerifiedReto Keiser849F0256F22902140Windows,Prime95,v16,(aka WS1)
VerifiedDax Prather849F0256F22902140Windows,Prime95,v14,(aka WQ1)
Verified1999-07-04Michael Schindler849F0256F2290214312886Windows,Prime95,v18,(aka WU1)
Verified2015-03-28MadPoo 🙂849F0256F2290214263940Windows 64-bit,Prime95,v26,(aka We4)
Verified2015-04-01MadPoo 🙂849F0256F22902142002774Windows 64-bit,Prime95,v26,(aka We4)
Verified2015-04-01MadPoo 🙂849F0256F22902141010874Windows 64-bit,Prime95,v26,(aka We4)
Verified2015-04-01MadPoo 🙂849F0256F22902143343754Windows 64-bit,Prime95,v26,(aka We4)
Verified2015-04-01Architects Cubed849F0256F22902142864411Linux 64-bit,Prime95,v27.9,build 1
Verified2015-04-01Architects Cubed849F0256F22902141577762Linux 64-bit,Prime95,v28.5,build 2
Verified2015-04-01LaurV849F0256F229021410324CUDALucas v2.05.1
Verified2015-04-01LaurV849F0256F22902149921CUDALucas v2.05.1
History
DateUserTypeResult
2025-10-27JossNF-PM1B1=10000000, B2=10211761560
2023-05-17Sid & AndyNF-PM1B1=6200000, B2=21554723190
2023-05-12JossNF-PM1B1=1000000, B2=887672940
2020-11-03GdSNF-PM1B1=5090238, B2=152707148
2016-02-23Mark RoseNFno factor TF: 62-63
2016-01-07ramgeisNFno factor TF: 70-71
2015-08-27ramgeisNFno factor TF: 69-70
2015-08-27ramgeisNFno factor TF: 68-69
2015-07-17Squeeky_SquirrelNF-PM1B1=230000, B2=6670000, E=12
2015-04-01LaurVC-LL849F0256F2290214
2015-04-01LaurVC-LL849F0256F2290214
2015-04-01Architects CubedC-LL849F0256F2290214
2015-04-01Architects CubedC-LL849F0256F2290214
2015-04-01MadPoo 🙂C-LL849F0256F2290214
2015-04-01MadPoo 🙂C-LL849F0256F2290214
2015-04-01MadPoo 🙂C-LL849F0256F2290214
2015-03-28Gordon SpenceNFno factor TF: 67-68
2015-03-28Gordon SpenceNFno factor TF: 66-67
2015-03-28Gordon SpenceNFno factor TF: 65-66
2015-03-28MadPoo 🙂C-LL849F0256F2290214
2015-02-15VictordeHollanderNFno factor TF: 64-65
2015-02-15VictordeHollanderNFno factor TF: 63-64
2014-09-23JossNF-PM1B1=93140
2014-05-21JossNF-PM1B1=74070
2012-11-15GrunwalderGIMPNFno factor TF: 1-63
2011-10-15USAFSSNF-PM1B1=55000, B2=907500, E=6
2011-08-28Grant McCrackenNFno factor TF: 61-62
2009-07-08Carsten KossendeyNF-PM1B1=15000, B2=206250
2009-03-27S485122NFno factor TF: 60-61
1999-10-15-anonymous-NFno factor TF: 1-60
1999-07-04-anonymous-C-LL849F0256F2290214
1998-07-05-anonymous-C-LL849F0256FF2902__
1998-06-14-anonymous-NFno factor TF: 1-60