191 026 291 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
6327737894486507338447	22	72.4	2019-10-28 23:27:55

History

Date	User	Type	Result
2019-10-28	Andrew G	F	Factor: 6327737894486507338447 / TF: 72-73
2019-10-19	Andrew G	NF	no factor from 2^71 to 2^72
2018-12-26	Zenghui	NF	no factor from 2^70 to 2^71
2016-11-10	mikr	NF	no factor from 2^69 to 2^70
2016-11-10	mikr	NF	no factor from 2^68 to 2^69
2016-05-16	XZT	NF	no factor from 2^67 to 2^68
2015-08-31	Thomas Shera	NF	no factor from 2^66 to 2^67
2013-06-07	Chih-Wei Huang	NF	no factor from 2^65 to 2^66
2011-04-11	sasaki3	NF	no factor from 2^64 to 2^65
2010-08-04	Richard	NF	no factor from 2^63 to 2^64