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
257069863Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1137019139476778155672166.62015-12-21 10:49:08
History
DateUserTypeResult
2015-12-21NickF
Factor: 113701913947677815567 / TF: 66-67
2013-11-18Luigi R.NF
no factor from 2^65 to 2^66
2011-08-05sasaki3NF
no factor from 2^64 to 2^65
2010-03-09carlos56NF
no factor from 2^63 to 2^64
2010-03-09carlos56NF
no factor from 2^62 to 2^63