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
677789243Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4275813386664072299212168.52018-05-19 07:18:11
History
DateUserTypeResult
2018-05-19ConductorF
Factor: 427581338666407229921 / TF: 68-69
2016-12-15NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-07-27sasakiNF
no factor from 2^66 to 2^67
2014-01-11sasakiNF
no factor from 2^65 to 2^66