Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
561143797Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4926500105314210223772168.72018-05-16 17:03:32
History
DateUserTypeResult
2018-05-16YxinityF
Factor: 492650010531421022377 / TF: 68-70
2016-12-10sasakiNF
no factor from 2^67 to 2^68
2015-10-29sasakiNF
no factor from 2^66 to 2^67
2014-04-30sasakiNF
no factor from 2^65 to 2^66
2011-11-15Architects CubedNF
no factor from 2^64 to 2^65
2010-03-04Architects CubedNF
no factor from 2^63 to 2^64