2 589 359 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
2406137940567564257	19	61.1	2012-06-22 17:43:43

ECM

Digits	B1	Curves
25	50000	61 / 280

Estimated T-Level: 21.1 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Gary Vedvik	21D3F85744252A06	0
Verified (Factored)	1999-04-02	David Phillips	21D3F85744252A06	2455730

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-15	Oliver Kruse	3C20F356D7951A08	1	114412	5	3
Verified	2017-12-02	kkmrkkblmbrbk	3C20F356D7951A08	1	1984807	5	3

History

Date	User	Type	Result
2022-03-11	LordJulius	NF	no factor from 2^1 to 2^60
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-02	kkmrkkblmbrbk	C-PRP	M2589359/2406137940567564257 : 3C20F356D7951A08 PRP: Verified PRP without proof (not generated)
2017-10-15	Oliver Kruse	C-PRP	M2589359/2406137940567564257 : 3C20F356D7951A08 PRP: Verified PRP without proof (not generated)
2012-06-22	Sebastian Hornbostel	F-ECM	Factor: 2406137940567564257
2011-02-21	James Heinrich	NF-PM1	B1=175000, B2=4112500, E=6
2011-01-13	Joss	NF-PM1	B1=50000
2010-11-15	Joss	NF-PM1	B1=20000
2009-02-01	Sturle Sunde	NF	no factor from 2^60 to 2^61