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
512981407Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
7071663761185228709932169.32017-07-07 00:18:53
History
DateUserTypeResult
2025-03-11James HeinrichF
Factor: 707166376118522870993 / TF: 69-70
2017-07-07Alex_soldierF
Factor: 707166376118522870993 / TF: 69-70*
2017-05-23sasakiNF
no factor from 2^68 to 2^69
2016-07-13sasakiNF
no factor from 2^67 to 2^68
2015-02-17sasakiNF
no factor from 2^66 to 2^67
2014-09-29sasakiNF
no factor from 2^65 to 2^66