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
190333477Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6171880716205170042492169.12015-08-28 17:55:35
History
DateUserTypeResult
2015-08-28demfloroF
Factor: 617188071620517004249 / TF: 69-70
2015-08-28demfloroNF
no factor from 2^68 to 2^69
2015-08-28demfloroNF
no factor from 2^66 to 2^68
2013-06-08RichardNF
no factor from 2^65 to 2^66
2011-04-10dslNF
no factor from 2^64 to 2^65
2010-08-02Torchwood InstituteNF
no factor from 2^63 to 2^64