981 000 199 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite: 1 known prime factor

Factored

Factor	Digits	Bits	Date
4446238883121447746657	22	71.9	2016-12-07 19:18:58

History

Date	User	Type	Result
2025-03-30	James Heinrich	F	Factor: 4446238883121447746657 / TF: 71-72
2016-12-07	Conductor	F	Factor: 4446238883121447746657 / TF: 71-72*
2015-04-13	ramgeis	NF	no factor from 2^70 to 2^71
2014-12-13	lycorn	NF	no factor from 2^67 to 2^70
2014-11-26	E.Lechner	NF	no factor from 2^66 to 2^67
2012-03-14	linded	NF	no factor from 2^65 to 2^66
2010-11-19	linded	NF	no factor from 2^64 to 2^65