43 283 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
4155169	7	22.0	old
7332165058652586265103849	25	82.6	2016-09-05 15:59:32

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	901 / 4588

Estimated T-Level: 36.0 ⓘ

TF below 2^115 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	8EE981C4F784D351	2	0	1	3
Verified	2017-09-21	Oliver Kruse	8EE981C4F784D351	2	0	1	3
Verified	2017-11-06	kkmrkkblmbrbk	8EE981C4F784D351	2	40776	1	3
Verified	2020-04-17	Oliver Kruse	439F6F1C5F37CCF6	2	41704	5	3
Verified	2021-03-22	_p95holder_	439F6F1C5F37CCF6	2	29313	5	3

P-1 factors

Date	Factor	B1	B2
2016-09-05	7332165058652586265103849	5000000	0

History

Date	User	Type	Result
2023-04-16	JacobZ	NF-PM1	B1=830000000, B2=886183533665430
2021-03-22	_p95holder_	C-PRP	M43283/4155169/7332165058652586265103849 : 439F6F1C5F37CCF6 PRP: Verified PRP without proof (small exponent)
2021-03-22	Conductor	F-ECM	Factor: 4155169 / (ECM curve 1, B1=1000000, B2=100000000, Sigma=1811221437977428)
2020-04-17	Oliver Kruse	C-PRP	M43283/4155169/7332165058652586265103849 : 439F6F1C5F37CCF6 PRP: Verified PRP without proof (small exponent)
2017-11-06	kkmrkkblmbrbk	C-PRP	M43283/4155169/7332165058652586265103849 : 8EE981C4F784D351 PRP: Verified PRP without proof (small exponent)
2017-09-21	Oliver Kruse	C-PRP	M43283/4155169/7332165058652586265103849 : 8EE981C4F784D351 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M43283/4155169/7332165058652586265103849 : 8EE981C4F784D351 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M43283/4155169/7332165058652586265103849 : 8EE981C4F784D351 PRP without proof (not generated)
2016-09-19	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2016-09-05	kkmrkkblmbrbk	F-PM1	Factor: 7332165058652586265103849 / (P-1, B1=5000000)