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
668108387Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4526976444913030893912168.62018-03-13 05:29:33
History
DateUserTypeResult
2018-03-13ConductorF
Factor: 452697644491303089391 / TF: 68-69
2017-02-09NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-05-15sasakiNF
no factor from 2^66 to 2^67
2013-04-16ramgeisNF
no factor from 2^65 to 2^66
2011-10-12laleraNF
no factor from 2^64 to 2^65
2010-06-23Architects CubedNF
no factor from 2^63 to 2^64