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
668587957Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4470555240482228922792168.62018-03-15 05:13:17
History
DateUserTypeResult
2018-03-15ConductorF
Factor: 447055524048222892279 / TF: 68-69
2017-02-05NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-06-04sasakiNF
no factor from 2^66 to 2^67
2013-04-17ramgeisNF
no factor from 2^65 to 2^66
2011-10-09laleraNF
no factor from 2^64 to 2^65
2010-06-14Architects CubedNF
no factor from 2^63 to 2^64