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
34419961
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 271
P-1
B1 = 1500000
B2 = 45000000
LL
StatusDateUserResidueShiftSoftware
Bad2005-04-26Erik Thiesemann9A0130C3CE0B4A8D9109808Windows,Prime95,v23,(aka WZ1)
Verified2015-05-21Architects CubedF77A72B582775B9C9131588Linux 64-bit,Prime95,v27.9,build 1
Verified2015-06-04DubslowF77A72B582775B9C34071114Linux 64-bit,Prime95,v28.6,build 1
History
DateUserTypeResult
2021-10-21Yves de WandelaarNFno factor TF: 74-75
2021-07-15megavinkNF-PM1B1=1500000, B2=45000000
2020-03-13-anonymous-NFno factor TF: 73-74
2019-10-28LaurVNFno factor TF: 71-72
2019-10-28LaurVNFno factor TF: 72-73
2015-06-04DubslowC-LLF77A72B582775B9C
2015-05-21Architects CubedC-LLF77A72B582775B9C
2014-02-14kdgehmanNFno factor TF: 69-70
2014-02-14kdgehmanNFno factor TF: 70-71
2013-07-28Torben K.NFno factor TF: 68-69
2005-04-26-anonymous-C-LL9A0130C3CE0B4A8D
2005-02-23-anonymous-NF-PM1B1=385000, B2=7892500
2005-02-18-anonymous-NFno factor TF: 1-68
2004-11-031997rj7NFno factor TF: 1-62
2004-02-07-anonymous-NFno factor TF: 1-61