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
617996521Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
7105556151690570276972169.32018-06-14 18:49:06
History
DateUserTypeResult
2025-03-08James HeinrichF
Factor: 710555615169057027697 / TF: 69-70
2018-06-14Alex_soldierF
Factor: 710555615169057027697 / TF: 69-70*
2017-03-16sasakiNF
no factor from 2^68 to 2^69
2017-01-06sasakiNF
no factor from 2^67 to 2^68
2014-03-07sasakiNF
no factor from 2^65 to 2^67