721 233 431 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
1239121760939500856351	22	70.1	2019-05-20 16:22:08

History

Date	User	Type	Result
2019-05-20	Daniil Tsarkov	F	Factor: 1239121760939500856351 / TF: 70-71
2015-02-04	monst	NF	no factor from 2^66 to 2^70
2012-01-11	monst	NF	no factor from 2^65 to 2^66
2011-03-03	monst	NF	no factor from 2^64 to 2^65
2010-07-23	Architects Cubed	NF	no factor from 2^63 to 2^64

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