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
674994421Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3956065148255190969592168.42018-04-28 15:44:58
History
DateUserTypeResult
2018-04-28ConductorF
Factor: 395606514825519096959 / TF: 68-69
2017-01-04NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-07-12sasakiNF
no factor from 2^66 to 2^67
2014-01-01sasakiNF
no factor from 2^65 to 2^66