223 140 607 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
1290266731404597378121	22	70.1	2020-04-28 14:17:32

History

Date	User	Type	Result
2020-04-28	Denis Zablotskiy	F	Factor: 1290266731404597378121
2019-02-25	Chabot Prime	NF	no factor from 2^69 to 2^70
2018-03-06	daniel horacio	NF	no factor from 2^68 to 2^69
2016-09-08	XZT	NF	no factor from 2^67 to 2^68
2015-11-01	Kenny Crumsey	NF	no factor from 2^66 to 2^67
2013-09-01	Richard	NF	no factor from 2^65 to 2^66
2011-06-09	sasaki3	NF	no factor from 2^64 to 2^65