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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MnStatusDetails
61506463Factored
FactorDigitsBitsDate
386596222680485489905192375.02013-04-18 08:39:16
P-1 factors
DateFactorB1B2
2013-04-183865962226804854899051958000010730000
History
DateUserTypeResult
2022-03-29LordJuliusNF
no factor from 2^62 to 2^63
2013-04-18Jwb52zF-PM1
Factor: 38659622268048548990519
2013-02-06MikeBerlinNF
no factor from 2^72 to 2^73
2013-02-06MikeBerlinNF
no factor from 2^71 to 2^72
2012-09-06Clown_RoyalNF
no factor from 2^70 to 2^71
2011-12-19subgeniusNF
no factor from 2^69 to 2^70
2009-10-15Team Prime RibNF
no factor from 2^68 to 2^69
2009-09-30Jonathan CrombieNF
no factor from 2^67 to 2^68
2009-09-25-Anonymous-NF
no factor from 2^66 to 2^67
2009-09-23-Anonymous-NF
no factor from 2^65 to 2^66
2009-07-24unconnectedNF
no factor from 2^64 to 2^65
2009-04-10cnaTb_xo4yNF
no factor from 2^63 to 2^64