550 301 183 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
3872673326054544290833	22	71.7	2020-01-27 15:08:23

History

Date	User	Type	Result
2025-04-06	James Heinrich	F	Factor: 3872673326054544290833 / TF: 71-72
2020-01-27	Smok_bmv	F	Factor: 3872673326054544290833 / TF: 71-72*
2019-11-05	sasaki	NF	no factor from 2^70 to 2^71
2018-10-31	srow7	NF	no factor from 2^69 to 2^70
2018-02-19	sasaki	NF	no factor from 2^68 to 2^69
2016-05-23	Bruno Victal	NF	no factor from 2^67 to 2^68
2015-11-16	sasaki	NF	no factor from 2^66 to 2^67
2014-07-21	sasaki	NF	no factor from 2^65 to 2^66
2011-03-01	Architects Cubed	NF	no factor from 2^64 to 2^65