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
670621631Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5636415782988058793032168.92018-03-29 13:53:02
History
DateUserTypeResult
2018-03-29ConductorF
Factor: 563641578298805879303 / TF: 68-69
2017-01-18NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-07-08sasakiNF
no factor from 2^66 to 2^67
2013-04-18ramgeisNF
no factor from 2^65 to 2^66