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
918400409Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2198616788109127515772167.62016-09-09 01:28:22
History
DateUserTypeResult
2016-09-09Alex_soldierF
Factor: 219861678810912751577 / TF: 67-68*
2015-10-03Alex_soldierNF
no factor from 2^66 to 2^67
2013-05-27ramgeisNF
no factor from 2^65 to 2^66
2011-01-21oerwinNF
no factor from 2^64 to 2^65
2010-07-20lindedNF
no factor from 2^63 to 2^64