4 096 513 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
5800662409	10	32.4	old
12944350216999	14	43.6	2008-09-30 21:34:28
3368885345591980764769	22	71.5	2018-11-29 16:37:14

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

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)	2017-11-13	kkmrkkblmbrbk	5C73F438B17898F9	2	659158	5	3
Verified (Factored)	2018-01-12	Oliver Kruse	5C73F438B17898F9	2	3222102	5	3
Verified	2018-11-30	Chang Chia-Tche	5C73F438B17898F9	3	977659	5	3

History

Date	User	Type	Result
2022-10-15	USAFSS	NF-PM1	B1=200000, B2=135233670
2018-11-30	Chang Chia-Tche	C-PRP	M4096513/5800662409/12944350216999/3368885345591980764769 : 5C73F438B17898F9 PRP: Verified PRP without proof (not generated)
2018-11-29	MarkS	F-ECM	Factor: 3368885345591980764769 / (ECM curve 2, B1=50000, B2=5000000)
2018-01-12	Oliver Kruse	C-PRP	M4096513/5800662409/12944350216999 : 5C73F438B17898F9 PRP: Verified PRP without proof (not generated)
2017-11-13	kkmrkkblmbrbk	C-PRP	M4096513/5800662409/12944350216999 : 5C73F438B17898F9 PRP: Verified PRP without proof (not generated)
2008-09-30	markr	F	Factor: 12944350216999