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
64236763
Composite: proven not-prime with Lucas-Lehmer test
No factors below 276
TF target 274
P-1
B1 = 1000000
B2 = 30000000
LL
StatusDateUserResidueShiftSoftware
Bad2014-06-11jimmychau9E0453D4FB7FFFC917944464Windows 64-bit,Prime95,v26.6,build 3
Verified2021-03-30Christoph Zenger66F6811989D09F2815774385Windows 64-bit,Prime95,v29.8,build 6
Verified2021-03-31ATH66F6811989D09F280gpuowl,v6.11-380-g79ea0cc
History
DateUserTypeResult
2021-03-31ATHC-LL66F6811989D09F28
2021-03-30Christoph ZengerC-LL66F6811989D09F28
2021-03-09Christoph ZengerNF-PM1B1=1000000, B2=30000000, E=12
2021-03-08Christoph ZengerNFno factor TF: 75-76
2021-03-04Christoph ZengerNFno factor TF: 74-75
2016-02-23Mark RoseNFno factor TF: 60-63
2014-06-11jimmychauC-LL9E0453D4FB7FFFC9
2013-11-03TheJudgerNF-PM1B1=575000, B2=11212500, E=6
2013-10-26GrunwalderGIMPNFno factor TF: 73-74
2013-10-20LingUaanNFno factor TF: 72-73
2013-09-13AllRandomNFno factor TF: 71-72
2012-09-05krackerNFno factor TF: 70-71
2012-09-05krackerNFno factor TF: 69-70
2010-06-03duklaNFno factor TF: 68-69
2010-05-30Helmut ZulusNFno factor TF: 67-68
2009-03-18cdingmanNFno factor TF: 66-67
2009-03-17dmbleessNFno factor TF: 65-66
2009-03-16nailsssNFno factor TF: 64-65
2009-03-11Sturle SundeNFno factor TF: 63-64
2004-01-18AxelFoxNFno factor TF: 1-60
2003-08-25Gordon SpenceNFno factor TF: 1-59