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
419027383Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
19780874469384405337132270.72019-11-05 03:25:52
History
DateUserTypeResult
2019-11-05Smok_bmv F
Factor: 1978087446938440533713 / TF: 70-71
2018-12-13sasakiNF
no factor from 2^69 to 2^70
2017-10-26sasakiNF
no factor from 2^68 to 2^69
2015-03-24sasakiNF
no factor from 2^66 to 2^68
2014-07-04RichardNF
no factor from 2^65 to 2^66
2010-10-24Architects CubedNF
no factor from 2^64 to 2^65