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
677508893Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3924551163267052991992168.42018-05-16 14:02:51
History
DateUserTypeResult
2018-05-16ConductorF
Factor: 392455116326705299199 / TF: 68-69
2016-12-16NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-07-20sasakiNF
no factor from 2^66 to 2^67
2014-01-09sasakiNF
no factor from 2^65 to 2^66