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
867990121Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
42181785935096974441132271.82020-02-20 22:00:31
History
DateUserTypeResult
2020-02-20Alex_soldierF
Factor: 4218178593509697444113 / TF: 71-72
2019-04-28srow7NF
no factor from 2^70 to 2^71
2016-11-09ramgeisNF
no factor from 2^68 to 2^70
2015-10-26sasakiNF
no factor from 2^67 to 2^68
2015-03-16sasakiNF
no factor from 2^66 to 2^67
2012-04-13David CampeauNF
no factor from 2^64 to 2^66
2010-08-02lindedNF
no factor from 2^63 to 2^64