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
271989433Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2253435380208052585212167.62016-10-26 14:23:29
History
DateUserTypeResult
2016-10-26Mikhail E. GolosovF
Factor: 225343538020805258521 / TF: 67-68
2016-01-06tscNF
no factor from 2^66 to 2^67
2013-11-30HardyP GermanyNF
no factor from 2^65 to 2^66
2011-08-30tscNF
no factor from 2^64 to 2^65
2010-03-28lindedNF
no factor from 2^63 to 2^64
2010-03-28lindedNF
no factor from 2^62 to 2^63