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
627000233Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6101681631156966066472169.02016-10-07 14:53:57
History
DateUserTypeResult
2016-10-07NipalF
Factor: 610168163115696606647 / TF: 67-70
2014-04-14sasakiNF
no factor from 2^66 to 2^67
2014-04-14sasakiNF
no factor from 2^65 to 2^66