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
390992071Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4976473772467310588712168.82018-05-20 11:26:03
History
DateUserTypeResult
2018-05-20YxinityF
Factor: 497647377246731058871 / TF: 68-70
2017-02-09Doug RheaNF
no factor from 2^67 to 2^68
2016-03-24Judge HaleNF
no factor from 2^66 to 2^67
2014-05-10RichardNF
no factor from 2^65 to 2^66
2010-04-30Architects CubedNF
no factor from 2^64 to 2^65