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
658622323Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6377913221972401990072169.12016-11-01 06:05:35
History
DateUserTypeResult
2016-11-01NipalF
Factor: 637791322197240199007 / TF: 67-70
2014-07-02sasakiNF
no factor from 2^66 to 2^67
2014-02-23america64NF
no factor from 2^65 to 2^66