918 597 521 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: 2 known prime factors

Factored

Factor	Digits	Bits	Date
165332571849429424031	21	67.2	2021-11-16 10:17:23
212646230996607997153	21	67.5	2016-09-18 20:51:32

History

Date	User	Type	Result
2021-11-16	TJAOI	F	Factor: 165332571849429424031 / TF: 67-68
2016-09-18	Alex_soldier	F	Factor: 212646230996607997153 / TF: 67-68*
2015-10-06	Alex_soldier	NF	no factor from 2^66 to 2^67
2013-05-06	ramgeis	NF	no factor from 2^65 to 2^66
2011-09-16	linded	NF	no factor from 2^64 to 2^65
2010-07-20	linded	NF	no factor from 2^63 to 2^64