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
281131583Factored
FactorDigitsBitsDate
2485774010353771196632167.82016-11-11 21:02:21
History
DateUserTypeResult
2016-11-11Mikhail E. GolosovF
Factor: 248577401035377119663 / TF: 67-68
2016-01-20ANONYMOUSNF
no factor from 2^66 to 2^67
2013-12-12RichardNF
no factor from 2^65 to 2^66
2011-09-15H_ReidNF
no factor from 2^64 to 2^65
2010-04-08-Anonymous-NF
no factor from 2^63 to 2^64
2010-04-08-Anonymous-NF
no factor from 2^62 to 2^63