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
208531483Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
836619846591639371272066.22015-10-11 23:55:15
History
DateUserTypeResult
2015-10-11demfloroF
Factor: 83661984659163937127 / TF: 66-68
2013-08-06CreweNetNF
no factor from 2^65 to 2^66
2011-05-13tscNF
no factor from 2^64 to 2^65