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
686551487Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5142881742944266339512168.82018-06-30 12:51:24
History
DateUserTypeResult
2018-06-30ConductorF
Factor: 514288174294426633951 / TF: 68-69
2016-12-03NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-08-06sasakiNF
no factor from 2^66 to 2^67
2014-02-09sasakiNF
no factor from 2^65 to 2^66
2012-02-02CandideNF
no factor from 2^64 to 2^65
2010-07-16Architects CubedNF
no factor from 2^63 to 2^64