928 444 241 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
280678029485010827239	21	67.9	2016-08-15 20:31:11

History

Date	User	Type	Result
2016-08-15	Conductor	F	Factor: 280678029485010827239 / TF: 67-68
2015-10-01	E.Lechner	NF	no factor from 2^66 to 2^67
2013-06-05	ramgeis	NF	no factor from 2^65 to 2^66
2011-07-17	linded	NF	no factor from 2^64 to 2^65
2010-07-13	HBendtz	NF	no factor from 2^63 to 2^64

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