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
447420089Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6819027228665169562792169.22019-02-07 19:58:48
History
DateUserTypeResult
2019-02-07ConductorF
Factor: 681902722866516956279 / TF: 69-70
2018-01-25sasakiNF
no factor from 2^68 to 2^69
2016-02-10sasakiNF
no factor from 2^66 to 2^68
2014-09-02Grant McCrackenNF
no factor from 2^65 to 2^66