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
554623409Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1553230485982432626792167.12016-11-09 13:24:02
History
DateUserTypeResult
2016-11-09ConductorF
Factor: 155323048598243262679 / TF: 67-68
2015-11-16sasakiNF
no factor from 2^66 to 2^67
2014-08-30sasakiNF
no factor from 2^65 to 2^66
2011-05-09Architects CubedNF
no factor from 2^64 to 2^65