1 749 023 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
682090985633	12	39.3	old
729489570217765921	18	59.3	2015-07-02 11:23:15
27849558366177545087	20	64.6	2017-11-16 15:37:55
79595302692270445653161	23	76.1	2015-07-02 11:23:15

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)	2017-10-05	Oliver Kruse	98C2A8C68BFF0792	3	0	1	3
Verified (Factored)	2017-11-10	kkmrkkblmbrbk	98C2A8C68BFF0792	3	1051440	1	3
Verified (Factored)	2017-11-17	Robin89	2DB2310AC5165270	1	0	1	3
Verified	2017-11-17	Oliver Kruse	CE33407FB7E523F5	4	378523	5	3
Verified	2017-11-17	kkmrkkblmbrbk	CE33407FB7E523F5	4	112598	5	3

P-1 factors

Date	Factor	B1	B2
2015-07-02	729489570217765921	500000	15000000
2015-07-02	79595302692270445653161	500000	15000000

History

Date	User	Type	Result
2017-11-17	kkmrkkblmbrbk	C-PRP	M1749023/682090985633/729489570217765921/79595302692270445653161/27849558366177545087 : CE33407FB7E523F5 PRP: Verified PRP without proof (not generated)
2017-11-17	Oliver Kruse	C-PRP	M1749023/682090985633/729489570217765921/79595302692270445653161/27849558366177545087 : CE33407FB7E523F5 PRP: Verified PRP without proof (not generated)
2017-11-17	Robin89	C-PRP	M1749023/known_factors : 2DB2310AC5165270 PRP: Verified PRP without proof (not generated)
2017-11-16	TJAOI	F	Factor: 27849558366177545087 / TF: 64-65
2017-11-10	kkmrkkblmbrbk	C-PRP	M1749023/682090985633/729489570217765921/79595302692270445653161 : 98C2A8C68BFF0792 PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1749023/682090985633/729489570217765921/79595302692270445653161 : 98C2A8C68BFF0792 PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1749023/682090985633/729489570217765921/79595302692270445653161 : 98C2A8C68BFF0792 PRP without proof (not generated)
2015-07-02	alpertron	F-PM1	Factor: 58063943152337354121288840209511051726281 / (P-1, B1=500000, B2=15000000, E=12)