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
669618997Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4171788914937849624972168.52018-03-19 14:21:39
History
DateUserTypeResult
2018-03-19ConductorF
Factor: 417178891493784962497 / TF: 68-69
2017-01-28NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-05-21sasakiNF
no factor from 2^66 to 2^67
2012-04-19laleraNF
no factor from 2^65 to 2^66
2011-07-06laleraNF
no factor from 2^64 to 2^65
2010-06-17Architects CubedNF
no factor from 2^63 to 2^64