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
277287887Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
20584920820085643078012270.82019-07-31 20:29:14
History
DateUserTypeResult
2019-07-31ConductorF
Factor: 2058492082008564307801 / TF: 70-71
2019-07-31ConductorNF
no factor from 2^69 to 2^70
2018-07-08Chabot PrimeNF
no factor from 2^68 to 2^69
2016-11-05XolotlNF
no factor from 2^67 to 2^68
2016-01-18RichardNF
no factor from 2^66 to 2^67
2013-12-09RichardNF
no factor from 2^65 to 2^66
2011-09-08sasaki3NF
no factor from 2^64 to 2^65
2010-04-04James HintzNF
no factor from 2^63 to 2^64
2010-04-04James HintzNF
no factor from 2^62 to 2^63