647 437 783 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
242467561940997637031	21	67.7	2016-09-04 05:57:01

History

Date	User	Type	Result
2016-09-04	Nipal	F	Factor: 242467561940997637031 / TF: 67-70
2014-06-17	sasaki	NF	no factor from 2^66 to 2^67
2014-03-19	america64	NF	no factor from 2^65 to 2^66

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