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
557002037Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2587593500957030904492167.82016-11-09 16:40:01
History
DateUserTypeResult
2016-11-09ConductorF
Factor: 258759350095703090449 / TF: 67-68
2015-11-20sasakiNF
no factor from 2^66 to 2^67
2014-09-15sasakiNF
no factor from 2^65 to 2^66
2011-09-24Architects CubedNF
no factor from 2^64 to 2^65