975 189 499 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
199378951308465055663	21	67.4	2015-12-31 19:50:19

History

Date	User	Type	Result
2015-12-31	Conductor	F	Factor: 199378951308465055663 / TF: 67-68
2015-02-19	Gordon Spence	NF	no factor from 2^66 to 2^67
2012-05-22	linded	NF	no factor from 2^65 to 2^66
2010-12-05	Ethan O'Connor	NF	no factor from 2^64 to 2^65
2010-06-01	linded	NF	no factor from 2^63 to 2^64

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