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:










MnStatusDetails
64487153Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 580000
B2 = 11600000
LL
StatusDateUserResidueShift
Verified2014-01-06Amazon EC22FD4192EF6B35FDD57613533
Verified2023-05-01BobD2FD4192EF6B35FDD50063123
History
DateUserTypeResult
2023-05-01BobDC-LL
2FD4192EF6B35FDD
2022-11-17Richard ThomasNF
no factor from 2^74 to 2^75
2016-02-23Mark RoseNF
no factor from 2^60 to 2^63
2014-01-06Amazon EC2C-LL
2FD4192EF6B35FDD
2013-11-18owftheevilNF-PM1
B1=580000, B2=11600000, E=12
2013-11-10TheJudgerNF
no factor from 2^73 to 2^74
2013-10-02Torchwood InstituteNF
no factor from 2^72 to 2^73
2013-10-02Torchwood InstituteNF
no factor from 2^71 to 2^72
2012-06-15Dr. NowakNF
no factor from 2^70 to 2^71
2012-01-06GrunwalderGIMPNF
no factor from 2^69 to 2^70
2009-12-04BigBrotherNF
no factor from 2^68 to 2^69
2009-12-02BigBrotherNF
no factor from 2^67 to 2^68
2009-12-01BaltinNF
no factor from 2^66 to 2^67
2009-11-29BaltinNF
no factor from 2^65 to 2^66
2009-03-15SAHS Science DeptNF
no factor from 2^64 to 2^65
2009-03-09Sturle SundeNF
no factor from 2^63 to 2^64