647 159 329 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
168791338825688864591	21	67.2	2016-09-12 20:48:36

History

Date	User	Type	Result
2016-09-12	Nipal	F	Factor: 168791338825688864591 / TF: 67-70
2014-06-15	sasaki	NF	no factor from 2^66 to 2^67
2014-03-19	america64	NF	no factor from 2^65 to 2^66
2010-11-05	Architects Cubed	NF	no factor from 2^64 to 2^65
2010-08-01	Architects Cubed	NF	no factor from 2^63 to 2^64

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