Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
40763599Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShift
Verified2008-04-04C. Cooper / S. Boone26C45C33A6DE997D29613367
Verified2017-05-01Sergey Nosov26C45C33A6DE997D30386213
History
DateUserTypeResult
2019-10-07Sid & AndyNF-PM1
B1=1000000, B2=20000000, E=12
2019-04-20Sid & AndyNF
no factor from 2^72 to 2^73
2017-05-01Sergey NosovC-LL
26C45C33A6DE997D
2015-05-31TheJudgerNF
no factor from 2^71 to 2^72
2014-12-28megavinkNF
no factor from 2^70 to 2^71
2014-12-28megavinkNF
no factor from 2^69 to 2^70
2013-11-18VictordeHollanderNF
no factor from 2^68 to 2^69