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
660222287Factored
FactorDigitsBitsDate
5001969021426057501772168.82018-02-08 12:09:59
History
DateUserTypeResult
2018-02-08ConductorF
Factor: 500196902142605750177 / TF: 68-69
2017-01-30sasakiNF
no factor from 2^67 to 2^68
2014-03-11sasakiNF
no factor from 2^66 to 2^67
2013-07-02blahpyNF
no factor from 2^65 to 2^66
2010-03-03ThomRuleyNF
no factor from 2^64 to 2^65
2010-03-03ThomRuleyNF
no factor from 2^63 to 2^64