2 274 521 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
5776080396610408721	19	62.3	2011-01-01 17:58:23

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Wayne Scott	3A5033D08C5C54F1	0
Verified (Factored)	1999-03-15	Lon Green	3A5033D08C5C54F1	875300

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-11	Oliver Kruse	7D07D48D3BD5588B	1	0	1	3
Verified	2017-11-22	kkmrkkblmbrbk	7D07D48D3BD5588B	1	1450710	1	3

History

Date	User	Type	Result
2017-11-22	kkmrkkblmbrbk	C-PRP	M2274521/5776080396610408721 : 7D07D48D3BD5588B PRP: Verified PRP without proof (not generated)
2017-10-11	Oliver Kruse	C-PRP	M2274521/5776080396610408721 : 7D07D48D3BD5588B PRP: Verified PRP without proof (not generated)
2016-05-01	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2011-01-01	markr	F-PM1	Factor: 5776080396610408721
2010-11-14	Joss	NF-PM1	B1=30000
2010-11-06	Joss	NF-PM1	B1=15000
2009-01-11	Sturle Sunde	NF	no factor from 2^60 to 2^61