2 479 577 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
14314122776816822431	20	63.6	2009-02-12 19:36:07

ECM

Digits	B1	Curves
25	50000	162 / 280

Estimated T-Level: 22.9 ⓘ

TF below 2^71 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Tan Loe Joo	F20655D4F8CB3525	0
Verified (Factored)	1999-07-27	Eric Leblanc	F20655D4F8CB3525	356929

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-15	kkmrkkblmbrbk	ECED51F39AD415EF	1	535800	5	3
Verified	2017-11-06	Oliver Kruse	ECED51F39AD415EF	1	1253977	5	3

History

Date	User	Type	Result
2022-03-10	LordJulius	NF	no factor from 2^1 to 2^60
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-06	Oliver Kruse	C-PRP	M2479577/14314122776816822431 : ECED51F39AD415EF PRP: Verified PRP without proof (not generated)
2017-10-15	kkmrkkblmbrbk	C-PRP	M2479577/14314122776816822431 : ECED51F39AD415EF PRP: Verified PRP without proof (not generated)
2009-02-12	Martti Järvi	F-ECM	Factor: 14314122776816822431
2009-01-16	Sturle Sunde	NF	no factor from 2^60 to 2^61