917 895 221 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
91387466852426643047	20	66.3	2015-10-29 20:28:09
229531009317293161553	21	67.6	2022-12-30 18:53:09

History

Date	User	Type	Result
2022-12-30	TJAOI	F	Factor: 229531009317293161553 / TF: 67-68
2015-10-29	Alex_soldier	F	Factor: 91387466852426643047 / TF: 66-67
2013-05-07	ramgeis	NF	no factor from 2^65 to 2^66
2011-09-21	linded	NF	no factor from 2^64 to 2^65
2010-06-22	linded	NF	no factor from 2^63 to 2^64

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