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
447500371Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
8574634407498357135532169.52019-02-10 06:52:44
History
DateUserTypeResult
2019-02-10ConductorF
Factor: 857463440749835713553 / TF: 69-70
2018-01-28sasakiNF
no factor from 2^68 to 2^69
2016-01-27sasakiNF
no factor from 2^66 to 2^68
2014-09-06GrunwalderGIMPNF
no factor from 2^65 to 2^66