1 819 043 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
3638087	7	21.8	old
582093761	9	29.1	2008-07-15 07:46:59
5620139361264961119439	22	72.3	2019-10-07 12:27:01

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	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-03	Oliver Kruse	AEB9EE41ED3EBE64	2	0	1	3
Verified (Factored)	2017-11-06	kkmrkkblmbrbk	AEB9EE41ED3EBE64	2	778452	1	3
Verified	2019-10-08	mnd9	60603CC512414B50	3	1367349	5	3
Verified	2019-10-12	Chang Chia-Tche	60603CC512414B50	3	541412	5	3

History

Date	User	Type	Result
2019-10-12	Chang Chia-Tche	C-PRP	M1819043/3638087/582093761/5620139361264961119439 : 60603CC512414B50 PRP: Verified PRP without proof (not generated)
2019-10-08	mnd9	C-PRP	M1819043/3638087/582093761/5620139361264961119439 : 60603CC512414B50 PRP: Verified PRP without proof (not generated)
2019-10-07	Chang Chia-Tche	F-ECM	Factor: 5620139361264961119439 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-06	kkmrkkblmbrbk	C-PRP	M1819043/3638087/582093761 : AEB9EE41ED3EBE64 PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1819043/3638087/582093761 : AEB9EE41ED3EBE64 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-07-15	J Feitsma	F	Factor: 582093761