277 222 789 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
1220913859347758473081	22	70.0	2019-07-16 21:14:02

History

Date	User	Type	Result
2019-07-16	Conductor	F	Factor: 1220913859347758473081 / TF: 70-71
2019-07-16	Conductor	NF	no factor from 2^69 to 2^70
2018-07-08	Chabot Prime	NF	no factor from 2^68 to 2^69
2016-11-07	Xolotl	NF	no factor from 2^67 to 2^68
2016-01-17	Richard	NF	no factor from 2^66 to 2^67
2013-12-07	haphaeu	NF	no factor from 2^65 to 2^66
2011-09-09	imps	NF	no factor from 2^64 to 2^65
2010-04-04	linded	NF	no factor from 2^63 to 2^64
2010-04-03	linded	NF	no factor from 2^62 to 2^63