923 978 221 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
145280634820089460721	21	67.0	2015-11-20 20:57:48

History

Date	User	Type	Result
2015-11-20	Conductor	F	Factor: 145280634820089460721 / TF: 66-67
2013-05-06	ramgeis	NF	no factor from 2^65 to 2^66
2011-08-15	linded	NF	no factor from 2^64 to 2^65
2010-06-14	linded	NF	no factor from 2^63 to 2^64

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