39 498 479 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
404586142923042293293441	24	78.4	2020-03-30 01:56:10

Status	Date	User	Residue	Shift
Verified (Factored)	2008-03-22	zengjian	960B3C54D10750B2	20161068
Verified (Factored)	2015-11-09	Tercariol, C. A. S.	960B3C54D10750B2	11473192

P-1 factors

Date	Factor	B1	B2
2020-03-30	404586142923042293293441	665000	13466250

History

Date	User	Type	Result
2020-03-30	Architects Cubed	F-PM1	Factor: 404586142923042293293441 / (P-1, B1=665000, B2=13466250, E=12)
2020-01-24	-Anonymous-	NF	no factor from 2^73 to 2^74
2019-10-11	-Anonymous-	NF	no factor from 2^72 to 2^73
2019-06-17	monst	NF	no factor from 2^71 to 2^72
2015-11-09	Tercariol, C. A. S.	C-LL	960B3C54D10750B2
2014-12-13	1997rj7	NF	no factor from 2^70 to 2^71
2014-12-09	kracker	NF	no factor from 2^69 to 2^70