923 215 439 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite: 2 known prime factors

Factored

Factor	Digits	Bits	Date
261486159778066391921	21	67.8	2015-11-15 10:24:14
286124336841513864511	21	68.0	2015-11-15 10:24:14

History

Date	User	Type	Result
2015-11-15	Conductor	F	Factor: 261486159778066391921 / TF: 67-68
2015-11-15	Conductor	F	Factor: 286124336841513864511 / TF: 67-68
2011-07-14	lalera	NF	no factor from 2^66 to 2^67
2011-07-06	lalera	NF	no factor from 2^64 to 2^66
2010-06-14	linded	NF	no factor from 2^63 to 2^64

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