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
329044871Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2556973203564647289192167.82016-11-02 20:45:29
History
DateUserTypeResult
2016-11-02ConductorF
Factor: 255697320356464728919 / TF: 67-68
2016-04-04dbaughNF
no factor from 2^66 to 2^67
2014-02-11RichardNF
no factor from 2^65 to 2^66
2011-11-16Jeff PalmerNF
no factor from 2^64 to 2^65