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
627778367Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2578421294686439118172167.82016-10-06 21:02:07
History
DateUserTypeResult
2016-10-06NipalF
Factor: 257842129468643911817 / TF: 67-70
2014-04-19sasakiNF
no factor from 2^65 to 2^67