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
61893751Factored
FactorDigitsBitsDate
285292447721353577967725241912994.52013-04-27 19:54:27
P-1 factors
DateFactorB1B2
2013-04-272852924477213535779677252419158000010730000
History
DateUserTypeResult
2022-03-29LordJuliusNF
no factor from 2^62 to 2^63
2013-04-27Jwb52zF-PM1
Factor: 28529244772135357796772524191
2013-02-18kdgehmanNF
no factor from 2^72 to 2^73
2013-02-18kdgehmanNF
no factor from 2^71 to 2^72
2013-02-16XyzzyNF
no factor from 2^70 to 2^71
2011-11-22S00030NF
no factor from 2^69 to 2^70
2009-07-27Sturle SundeNF
no factor from 2^68 to 2^69
2009-07-26-Anonymous-NF
no factor from 2^67 to 2^68
2009-07-22-Anonymous-NF
no factor from 2^66 to 2^67
2009-02-10KlickitatAvengerNF
no factor from 2^65 to 2^66
2009-02-09KlickitatAvengerNF
no factor from 2^64 to 2^65
2009-02-09ThomasNF
no factor from 2^63 to 2^64