1 848 503 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
4299446130070103	16	51.9	old
2590439619848768727577	22	71.1	2015-08-30 12:32:37
536199439113043066794813060433	30	98.8	2020-10-15 07:06:33

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	108 / 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)	2017-09-30	alpertron	2D645F6B0C8085E1	2	0	1	3
Verified (Factored)	2017-10-19	Oliver Kruse	2D645F6B0C8085E1	2	724330	1	3
Verified	2020-10-19	LordJulius	438C7ECF86D8E741	3	1696179	5	3

P-1 factors

Date	Factor	B1	B2
2015-08-30	2590439619848768727577	500000	15000000

History

Date	User	Type	Result
2020-10-19	ky0uraku	CERT	PRP Certification Proof certified good
2020-10-19	LordJulius	C-PRP	M1848503/4299446130070103/2590439619848768727577/536199439113043066794813060433 : 438C7ECF86D8E741 PRP proof power = 7 PRP: Verified Proof certified good
2020-10-15	Poao	F-ECM	Factor: 536199439113043066794813060433 / (ECM curve 240, B1=50000, B2=5000000, Sigma=5110509028955465)
2017-10-19	Oliver Kruse	C-PRP	M1848503/4299446130070103/2590439619848768727577 : 2D645F6B0C8085E1 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1848503/4299446130070103/2590439619848768727577 : 2D645F6B0C8085E1 PRP: Verified (Factored) PRP without proof (not generated)
2015-08-30	alpertron	F-PM1	Factor: 2590439619848768727577 / (P-1, B1=500000, B2=15000000, E=12)