918 920 297 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
278653412267609398319	21	67.9	2016-09-27 19:57:58

History

Date	User	Type	Result
2016-09-28	NoPolarBearsHere	F	Factor: 278653412267609398319 / TF: 67-68
2016-09-27	Alex_soldier	F	Factor: 278653412267609398319 / TF: 67-68*
2015-10-09	Alex_soldier	NF	no factor from 2^66 to 2^67
2013-05-27	ramgeis	NF	no factor from 2^65 to 2^66
2011-09-14	linded	NF	no factor from 2^64 to 2^65
2010-07-20	linded	NF	no factor from 2^63 to 2^64

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