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
556997719Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3552751720596061898712168.32018-05-21 05:28:08
History
DateUserTypeResult
2018-05-21YxinityF
Factor: 355275172059606189871 / TF: 68-70
2016-11-15sasakiNF
no factor from 2^67 to 2^68
2016-01-18sasakiNF
no factor from 2^66 to 2^67
2014-09-15sasakiNF
no factor from 2^65 to 2^66
2011-05-23Architects CubedNF
no factor from 2^64 to 2^65