11 743 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
466561720151	12	38.8	old
987211241872180367597561599292402783	36	119.6	2017-03-12 11:19:40

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1297 / 9201

Estimated T-Level: 40.7 ⓘ

TF below 2^130 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	5E789D8FB7F8EE88	2	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	5E789D8FB7F8EE88	2	0	1	3
Verified	2017-12-07	ATH	5E789D8FB7F8EE88	2	4912	1	3
Verified	2020-04-17	Oliver Kruse	7C57E6F19DFA8B9A	2	1688	5	3
Verified	2024-07-01	kkmrkkblmbrbk	7C57E6F19DFA8B9A	2	481	5	3

History

Date	User	Type	Result
2024-07-01	kkmrkkblmbrbk	C-PRP	M11743/466561720151/987211241872180367597561599292402783 : 7C57E6F19DFA8B9A PRP: Verified PRP without proof (small exponent)
2023-03-26	-Anonymous-	NF-PM1	B1=100000000000, B2=122192573512709700
2020-04-17	Oliver Kruse	C-PRP	M11743/466561720151/987211241872180367597561599292402783 : 7C57E6F19DFA8B9A PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M11743/466561720151/987211241872180367597561599292402783 : 5E789D8FB7F8EE88 PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M11743/466561720151/987211241872180367597561599292402783 : 5E789D8FB7F8EE88 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M11743/466561720151/987211241872180367597561599292402783 : 5E789D8FB7F8EE88 PRP without proof (not generated)
2017-03-12	kkmrkkblmbrbk	F-ECM	Factor: 987211241872180367597561599292402783 / (ECM curve 925, B1=1000000, B2=100000000)
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=10000000000, E=12