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
328999591Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3931860787136445023532168.42016-11-02 16:46:16
History
DateUserTypeResult
2016-11-02ConductorF
Factor: 393186078713644502353 / TF: 68-69
2016-05-23monstNF
no factor from 2^66 to 2^68
2014-02-11RichardNF
no factor from 2^65 to 2^66
2011-11-16Dalos LeeNF
no factor from 2^64 to 2^65