2 582 627 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
101310336345234438223	21	66.5	2012-11-01 21:54:36

ECM

Digits	B1	Curves
25	50000	135 / 280

Estimated T-Level: 22.4 ⓘ

TF below 2^69 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Tony Forbes	8C79628451494E39	0
Verified (Factored)		Chris Smith	8C79628451494E39	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-16	kkmrkkblmbrbk	E49D9AEAF517EE31	1	1705541	5	3
Verified	2017-11-11	Oliver Kruse	E49D9AEAF517EE31	1	2318866	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
2017-11-11	Oliver Kruse	C-PRP	M2582627/101310336345234438223 : E49D9AEAF517EE31 PRP: Verified PRP without proof (not generated)
2017-10-16	kkmrkkblmbrbk	C-PRP	M2582627/101310336345234438223 : E49D9AEAF517EE31 PRP: Verified PRP without proof (not generated)
2012-11-01	Torchwood Institute	F-ECM	Factor: 101310336345234438223
2012-06-20	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-10-11	markr	NF-PM1	B1=175000, B2=4112500, E=6
2011-01-12	Joss	NF-PM1	B1=50000
2010-11-15	Joss	NF-PM1	B1=20000
2009-01-28	Sturle Sunde	NF	no factor from 2^60 to 2^61