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
971546237Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5133816411444628100472168.82016-11-01 16:42:03
History
DateUserTypeResult
2016-11-01Sergey KomolovF
Factor: 513381641144462810047 / TF: 68-69
2016-05-31NoPolarBearsHereNF
no factor from 2^67 to 2^68
2015-02-10Gordon SpenceNF
no factor from 2^66 to 2^67
2012-07-06lindedNF
no factor from 2^65 to 2^66
2010-12-31lindedNF
no factor from 2^64 to 2^65
2010-04-14lindedNF
no factor from 2^63 to 2^64