2 382 917 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
7394165382016697519	19	62.7	2013-01-23 08:17:43

ECM

Digits	B1	Curves
25	50000	140 / 280

Estimated T-Level: 22.5 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Thomas Hertz	C86F0FD650B01891	0
Verified (Factored)	1999-03-15	Ethan Hansen	C86F0FD650B01891	764406

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-12	Oliver Kruse	208879E0B6471462	1	2194484	5	3
Verified	2017-11-25	kkmrkkblmbrbk	208879E0B6471462	1	126191	5	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-25	kkmrkkblmbrbk	C-PRP	M2382917/7394165382016697519 : 208879E0B6471462 PRP: Verified PRP without proof (not generated)
2017-10-12	Oliver Kruse	C-PRP	M2382917/7394165382016697519 : 208879E0B6471462 PRP: Verified PRP without proof (not generated)
2013-01-23	dbaugh	F	Factor: 7394165382016697519
2012-06-01	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2010-12-27	markr	NF-PM1	B1=100000, B2=2075000, E=6
2010-11-15	Joss	NF-PM1	B1=20000
2010-11-08	Joss	NF-PM1	B1=15000
2009-01-14	Sturle Sunde	NF	no factor from 2^60 to 2^61