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
255834167Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
9911094361485740798632169.72018-06-14 17:49:58
History
DateUserTypeResult
2018-06-28stonecastle97NF
no factor from 2^68 to 2^69
2018-06-14YxinityF
Factor: 991109436148574079863 / TF: 69-70
2018-06-14YxinityNF
no factor from 2^68 to 2^69
2015-10-10caddrNF
no factor from 2^66 to 2^68
2013-11-13sasaki3NF
no factor from 2^65 to 2^66
2011-08-06mmNF
no factor from 2^64 to 2^65
2010-03-09HBendtzNF
no factor from 2^63 to 2^64
2010-03-09HBendtzNF
no factor from 2^62 to 2^63