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
610422721Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5153293811129072410732168.82016-11-08 08:03:27
History
DateUserTypeResult
2016-11-08NipalF
Factor: 515329381112907241073 / TF: 67-70
2014-01-23sasakiNF
no factor from 2^66 to 2^67
2014-01-23sasakiNF
no factor from 2^65 to 2^66