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
197452877Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
41763630310737605920572271.82015-09-18 05:55:06
History
DateUserTypeResult
2015-09-18demfloroF
Factor: 4176363031073760592057 / TF: 71-72
2015-09-18demfloroNF
no factor from 2^70 to 2^71
2015-09-18demfloroNF
no factor from 2^69 to 2^70
2015-09-18demfloroNF
no factor from 2^68 to 2^69
2015-09-18demfloroNF
no factor from 2^66 to 2^68
2013-07-24Gabriel AlexandreNF
no factor from 2^65 to 2^66
2011-04-24c10ck3rNF
no factor from 2^64 to 2^65
2010-08-08sasaki3NF
no factor from 2^63 to 2^64