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

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Exponent Range:










MnStatusDetails
60923221Factored
FactorDigitsBitsDate
7781381583962769153216732479.42013-04-20 00:55:01
P-1 factors
DateFactorB1B2
2013-04-207781381583962769153216735750000
History
DateUserTypeResult
2022-03-29LordJuliusNF
no factor from 2^60 to 2^63
2013-04-20BdotF-PM1
Factor: 778138158396276915321673
2013-01-18GrunwalderGIMPNF
no factor from 2^72 to 2^73
2013-01-18GrunwalderGIMPNF
no factor from 2^71 to 2^72
2012-09-03RobertNNF
no factor from 2^70 to 2^71
2011-12-03André JordiNF
no factor from 2^69 to 2^70
2009-07-20steinrarNF
no factor from 2^68 to 2^69
2009-04-13dgriffie79NF
no factor from 2^67 to 2^68
2009-04-11RA 59NF
no factor from 2^66 to 2^67
2009-04-10Lebedev_NikolaiNF
no factor from 2^65 to 2^66
2009-04-07Lebedev_NikolaiNF
no factor from 2^64 to 2^65
2009-04-04Lebedev_NikolaiNF
no factor from 2^63 to 2^64