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
658782049Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2573556761182208073672167.82016-10-27 04:28:24
History
DateUserTypeResult
2016-10-27NipalF
Factor: 257355676118220807367 / TF: 67-70
2014-04-26abcNF
no factor to 2^67
2014-02-23america64NF
no factor from 2^65 to 2^66