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
447447787Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
9981491889772023883272169.82019-02-08 12:10:04
History
DateUserTypeResult
2019-02-08ConductorF
Factor: 998149188977202388327 / 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
2014-09-02ANONYMOUSNF
no factor from 2^65 to 2^66