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
619957963Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2258099748846810823192167.62016-09-24 06:59:31
History
DateUserTypeResult
2016-09-24NipalF
Factor: 225809974884681082319 / TF: 67-70
2014-03-14sasakiNF
no factor from 2^65 to 2^67