267 881 287 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
129387855748448146439	21	66.8	2015-12-30 19:43:10

History

Date	User	Type	Result
2015-12-30	Alex_soldier	F	Factor: 129387855748448146439 / TF: 66-67
2013-11-25	KayJongsma	NF	no factor from 2^65 to 2^66
2011-08-23	lindee	NF	no factor from 2^64 to 2^65
2010-03-23	csaba	NF	no factor from 2^63 to 2^64
2010-03-23	csaba	NF	no factor from 2^62 to 2^63

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