Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
299993999Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
397486106365164382175692375.12020-12-15 21:38:40
History
DateUserTypeResult
2020-12-15Ruslan BorisovF
Factor: 39748610636516438217569 / TF: 75-76
2020-12-15Ruslan BorisovNF
no factor from 2^74 to 2^75
2020-12-15Ruslan BorisovNF
no factor from 2^73 to 2^74
2020-12-15Ruslan BorisovNF
no factor from 2^72 to 2^73
2020-07-19SRBaseNF
no factor from 2^71 to 2^72
2020-05-07deo2016NF
no factor from 2^70 to 2^71
2016-11-27YxinityNF
no factor from 2^69 to 2^70
2016-11-27YxinityNF
no factor from 2^67 to 2^69
2015-01-24Gordon SpenceNF
no factor from 2^66 to 2^67
2014-01-03tscNF
no factor from 2^65 to 2^66
2011-10-10delta_tNF
no factor from 2^64 to 2^65
2010-03-02James HintzNF
no factor from 2^63 to 2^64