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
223289779Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1916060342072296949532167.42015-11-02 13:55:14
History
DateUserTypeResult
2015-11-02demfloroF
Factor: 191606034207229694953 / TF: 66-68
2013-08-30Chih-Wei HuangNF
no factor from 2^65 to 2^66
2011-06-10Jonathan A ZylstraNF
no factor from 2^64 to 2^65