599 941 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
3599647	7	21.8	old
42517818671	11	35.3	2008-07-21 09:22:24
1066386728327	13	40.0	2008-07-21 09:22:24
3137437055017	13	41.5	2008-07-21 09:22:24
20853626391743	14	44.2	2008-07-21 09:22:24
996049170932502125210969	24	79.7	2014-11-10 01:08:36

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	210 / 640

Estimated T-Level: 26.6 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-28	Oliver Kruse	FE1AD4808B229B33	6	0	1	3
Verified	2017-09-30	alpertron	FE1AD4808B229B33	6	0	1	3
Verified	2017-12-07	ATH	FE1AD4808B229B33	6	229309	1	3
Unverified (Reliable)	2020-04-19	Oliver Kruse	0A6B1E54086BE2__	6	390879	5	3

P-1 factors

Date	Factor	B1	B2
2014-11-10	996049170932502125210969	1500000	50000000

History

Date	User	Type	Result
2023-01-04	USAFSS	NF-PM1	B1=1750000, B2=5399784390
2020-04-19	Oliver Kruse	C-PRP	M599941/3599647/42517818671/1066386728327/3137437055017/20853626391743/996049170932502125210969 : 0A6B1E54086BE2__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M599941/3599647/42517818671/1066386728327/3137437055017/20853626391743/996049170932502125210969 : FE1AD4808B229B33 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-30	alpertron	C-PRP	M599941/1066386728327/20853626391743/3137437055017/3599647/42517818671/996049170932502125210969 : FE1AD4808B229B33 PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-28	Oliver Kruse	C-PRP	M599941/3599647/1066386728327/20853626391743/3137437055017/42517818671/996049170932502125210969 : FE1AD4808B229B33 PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-27	Oliver Kruse	C-PRP	M599941/3599647/1066386728327/20853626391743/3137437055017/42517818671/996049170932502125210969 : FE1AD4808B229B33 PRP without proof (not generated)
2014-11-10	alpertron	F-PM1	Factor: 996049170932502125210969 / (P-1, B1=1500000, B2=50000000, E=12)
2008-07-21	J Feitsma	F	Factor: 42517818671
2008-07-21	J Feitsma	F	Factor: 3137437055017
2008-07-21	J Feitsma	F	Factor: 20853626391743
2008-07-21	J Feitsma	F	Factor: 1066386728327