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
619501937Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
7643228390065162441132169.42016-09-26 16:26:42
History
DateUserTypeResult
2016-09-26NipalF
Factor: 764322839006516244113 / TF: 67-70
2014-03-13sasakiNF
no factor from 2^65 to 2^67