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
668550067Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5805162666740533388872169.02018-03-14 22:40:33
History
DateUserTypeResult
2018-03-14ConductorF
Factor: 580516266674053338887 / TF: 68-69
2017-02-05NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-05-27sasakiNF
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
2010-06-22Architects CubedNF
no factor from 2^63 to 2^64