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
916701257Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1272802084191966798412166.82015-11-27 16:07:57
History
DateUserTypeResult
2015-11-27Alex_soldierF
Factor: 127280208419196679841 / TF: 66-67
2013-05-29ramgeisNF
no factor from 2^65 to 2^66
2011-09-28lindedNF
no factor from 2^64 to 2^65
2010-07-25HBendtzNF
no factor from 2^63 to 2^64