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
317644829Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2566235244822056665612167.82016-03-28 05:41:48
History
DateUserTypeResult
2016-03-28SarnetskyF
Factor: 256623524482205666561 / TF: 67-69*
2016-02-22SarnetskyNF
no factor from 2^66 to 2^67
2014-01-25AKAxAutoNF
no factor from 2^65 to 2^66
2011-11-01tscNF
no factor from 2^64 to 2^65