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
478248761Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4228922018066001129532168.52017-12-01 14:39:51
History
DateUserTypeResult
2017-12-01ky0urakuF
Factor: 422892201806600112953 / TF: 68-69
2016-06-11sasakiNF
no factor from 2^67 to 2^68
2016-03-26sasakiNF
no factor from 2^66 to 2^67
2014-10-09firereddNF
no factor from 2^65 to 2^66
2011-12-12RichardNF
no factor from 2^64 to 2^65
2010-03-30Architects CubedNF
no factor from 2^63 to 2^64