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
627288229Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6517238379368924656812169.12016-10-06 14:58:10
History
DateUserTypeResult
2016-10-06NipalF
Factor: 651723837936892465681 / TF: 67-70
2014-04-16sasakiNF
no factor from 2^65 to 2^67
2012-01-18Chris SmithNF
no factor from 2^64 to 2^65
2010-08-02Architects CubedNF
no factor from 2^63 to 2^64