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
681015281Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4479483950645097726472168.62018-05-31 17:45:35
History
DateUserTypeResult
2018-05-31ConductorF
Factor: 447948395064509772647 / TF: 68-69
2016-10-22sasakiNF
no factor from 2^67 to 2^68
2014-07-25sasakiNF
no factor from 2^66 to 2^67
2014-01-19sasakiNF
no factor from 2^65 to 2^66
2012-01-29sasaki3NF
no factor from 2^64 to 2^65
2010-07-02Architects CubedNF
no factor from 2^63 to 2^64