944 227 223 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
198705109031274694943	21	67.4	2016-10-10 15:06:36

History

Date	User	Type	Result
2016-10-10	Conductor	F	Factor: 198705109031274694943 / TF: 67-68
2015-09-06	Bruno Victal	NF	no factor from 2^66 to 2^67
2013-06-12	ramgeis	NF	no factor from 2^65 to 2^66
2011-06-03	linded	NF	no factor from 2^64 to 2^65
2010-06-19	linded	NF	no factor from 2^63 to 2^64

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