Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
59756923Factored
FactorDigitsBitsDate
871130722059415812864972376.22013-01-20 19:05:54
P-1 factors
DateFactorB1B2
2013-01-20871130722059415812864976450000
History
DateUserTypeResult
2022-06-27LordJuliusNF
no factor from 2^1 to 2^63
2013-01-20BdotF-PM1
Factor: 87113072205941581286497
2012-07-26bcp19NF
no factor from 2^71 to 2^73
2011-10-23TheJudgerNF
no factor from 2^70 to 2^71
2011-08-25ASTERIASNF
no factor from 2^69 to 2^70
2009-12-17TDH-DXLNF
no factor from 2^68 to 2^69
2009-02-07James HintzNF
no factor from 2^67 to 2^68
2009-02-02James HintzNF
no factor from 2^66 to 2^67
2009-01-30James HintzNF
no factor from 2^65 to 2^66
2009-01-27haskovecNF
no factor from 2^64 to 2^65
2008-03-31monstNF
no factor from 2^63 to 2^64