2 630 323 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
49004072161379456783	20	65.4	2011-02-28 21:38:54

ECM

Digits	B1	Curves
25	50000	6 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Edward Brisse	CC67C3D50EB2AC35	0
Verified (Factored)	1999-07-30	Oakwood Friends School	CC67C3D50EB2AC35	1021491

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-17	Oliver Kruse	2ECDFCA5089A7D12	1	401617	5	3
Verified	2017-12-02	kkmrkkblmbrbk	2ECDFCA5089A7D12	1	1348457	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	M2630323/49004072161379456783 : 2ECDFCA5089A7D12 PRP: Verified PRP without proof (not generated)
2017-10-17	Oliver Kruse	C-PRP	M2630323/49004072161379456783 : 2ECDFCA5089A7D12 PRP: Verified PRP without proof (not generated)
2011-02-28	James Heinrich	F-PM1	Factor: 49004072161379456783
2011-01-20	Joss	NF-PM1	B1=50000
2010-12-26	Joss	NF-PM1	B1=30000
2010-12-21	Joss	NF-PM1	B1=20000
2009-01-30	Sturle Sunde	NF	no factor from 2^60 to 2^61