247 658 387 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
6275661899825483338247	22	72.4	2019-03-16 17:03:16

History

Date	User	Type	Result
2019-03-16	vladglushko88	F	Factor: 6275661899825483338247 / TF: 72-73
2019-03-16	vladglushko88	NF	no factor from 2^71 to 2^72
2019-03-16	vladglushko88	NF	no factor from 2^70 to 2^71
2019-03-16	vladglushko88	NF	no factor from 2^69 to 2^70
2018-05-25	rubikvn2100	NF	no factor from 2^68 to 2^69
2016-10-19	rubikvn2100	NF	no factor from 2^67 to 2^68
2015-12-16	Richard	NF	no factor from 2^66 to 2^67
2013-11-01	Richard	NF	no factor from 2^65 to 2^66
2011-07-21	ALS	NF	no factor from 2^64 to 2^65