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
619947157Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2254025927507555719992167.62016-09-23 18:58:18
History
DateUserTypeResult
2016-09-23NipalF
Factor: 225402592750755571999 / TF: 67-70
2014-03-14sasakiNF
no factor from 2^65 to 2^67