2 918 393 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
5422075163779649	16	52.3	old
134389178575750577	18	56.9	2015-05-08 11:37:05
49444706875423306969	20	65.4	2018-05-27 22:25:35

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-24	Oliver Kruse	3FAB967B3245037A	2	863136	5	3
Verified (Factored)	2017-12-08	kkmrkkblmbrbk	3FAB967B3245037A	2	37833	5	3
Verified	2018-05-29	Oliver Kruse	3FAB967B3245037A	3	1967549	5	3

History

Date	User	Type	Result
2023-02-04	USAFSS	NF-PM1	B1=360000, B2=282695490
2018-05-29	Oliver Kruse	C-PRP	M2918393/5422075163779649/134389178575750577/49444706875423306969 : 3FAB967B3245037A PRP: Verified PRP without proof (not generated)
2018-05-27	ATH	F-ECM	Factor: 49444706875423306969 / (ECM curve 3, B1=50000, B2=5000000)
2017-12-08	kkmrkkblmbrbk	C-PRP	M2918393/5422075163779649/134389178575750577 : 3FAB967B3245037A PRP: Verified PRP without proof (not generated)
2017-10-24	Oliver Kruse	C-PRP	M2918393/5422075163779649/134389178575750577 : 3FAB967B3245037A PRP: Verified PRP without proof (not generated)
2015-05-08	TJAOI	F	Factor: 134389178575750577 / TF: 56-57