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
86628019Factored
FactorDigitsBitsDate
2056060702995632339162615175938652135114.02018-04-03 09:27:40
P-1 factors
DateFactorB1B2
2018-04-03205606070299563233916261517593865217000000
History
DateUserTypeResult
2018-04-03mgpainterF-PM1
Factor: 20560607029956323391626151759386521 / (P-1, B1=700000)
2018-02-18TheJudgerNF
no factor from 2^75 to 2^76
2018-02-16Brian BeuningNF
no factor from 2^74 to 2^75
2017-06-14RichD0NF
no factor from 2^73 to 2^74
2017-04-13Judge HaleNF
no factor from 2^72 to 2^73
2017-04-13Judge HaleNF
no factor from 2^71 to 2^72
2013-11-16SMoffatNF
no factor from 2^70 to 2^71
2013-05-22Brian V.NF
no factor from 2^69 to 2^70
2013-03-15-Anonymous-NF
no factor from 2^68 to 2^69
2013-03-01saffaNF
no factor from 2^67 to 2^68
2010-11-29Michael CNF
no factor from 2^66 to 2^67
2010-11-29Michael CNF
no factor from 2^65 to 2^66
2010-10-24Michael CNF
no factor from 2^64 to 2^65