163 223 483 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
12938251041774310686631	23	73.5	2019-12-16 04:40:09

History

Date	User	Type	Result
2019-12-16	Smok_bmv	F	Factor: 12938251041774310686631 / TF: 73-74*
2019-06-27	Ilya Alexandrov	NF	no factor from 2^72 to 2^73
2019-05-12	proxy2222	NF	no factor from 2^71 to 2^72
2018-08-13	Zenghui	NF	no factor from 2^70 to 2^71
2018-06-16	proxy2222	NF	no factor from 2^69 to 2^70
2017-04-05	BrionH	NF	no factor from 2^68 to 2^69
2016-03-04	caddr	NF	no factor from 2^67 to 2^68
2015-05-14	Mr-Plonk	NF	no factor from 2^66 to 2^67
2012-07-04	Clown_Royal	NF	no factor from 2^65 to 2^66
2011-02-06	sasaki3	NF	no factor from 2^64 to 2^65
2010-07-02	subgenius	NF	no factor from 2^63 to 2^64