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
478387387Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4002899984620222721692168.42017-12-02 09:38:46
History
DateUserTypeResult
2017-12-02ky0urakuF
Factor: 400289998462022272169 / TF: 68-69
2016-06-14sasakiNF
no factor from 2^67 to 2^68
2016-04-10monstNF
no factor from 2^66 to 2^67
2016-04-10sasakiNF
no factor from 2^66 to 2^67
2014-10-10MattNF
no factor from 2^65 to 2^66
2011-12-12Dalos LeeNF
no factor from 2^64 to 2^65
2010-03-31Architects CubedNF
no factor from 2^63 to 2^64