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
193986451Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
21066108801437124950392270.82015-09-09 18:55:11
History
DateUserTypeResult
2015-09-09demfloroF
Factor: 2106610880143712495039 / TF: 70-71
2015-09-09demfloroNF
no factor from 2^69 to 2^70
2015-09-09demfloroNF
no factor from 2^68 to 2^69
2015-09-09demfloroNF
no factor from 2^66 to 2^68
2013-06-23RichardNF
no factor from 2^65 to 2^66
2011-04-18megavinkNF
no factor from 2^64 to 2^65
2010-08-08RichardNF
no factor from 2^63 to 2^64