4 189 307 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
12107386914186167519	20	63.4	2009-08-04 12:44:49
6302061532887593970223	22	72.4	2018-12-06 19:54:24

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David A McGough	161148FE46F6DE53	0
Verified (Factored)	1999-10-21	John Papiewski	161148FE46F6DE53	3837045

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	EAA13ECA79F1EB82	1	0	1	3
Verified (Factored)	2018-01-18	Oliver Kruse	EAA13ECA79F1EB82	1	39618	1	3
Verified	2018-12-07	GunnarLu	715D4193481BEFF2	2	1455430	5	3
Verified	2018-12-08	kkmrkkblmbrbk	715D4193481BEFF2	2	3579872	5	3

History

Date	User	Type	Result
2023-03-03	USAFSS	NF-PM1	B1=224000, B2=119776800
2018-12-08	kkmrkkblmbrbk	C-PRP	M4189307/12107386914186167519/6302061532887593970223 : 715D4193481BEFF2 PRP: Verified PRP without proof (not generated)
2018-12-07	GunnarLu	C-PRP	M4189307/12107386914186167519/6302061532887593970223 : 715D4193481BEFF2 PRP: Verified PRP without proof (not generated)
2018-12-06	ATH	F-ECM	Factor: 6302061532887593970223 / (ECM curve 1, B1=50000, B2=5000000)
2018-01-18	Oliver Kruse	C-PRP	M4189307/12107386914186167519 : EAA13ECA79F1EB82 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4189307/12107386914186167519 : EAA13ECA79F1EB82 PRP: Verified PRP without proof (not generated)
2009-08-04	Carsten Kossendey	F-PM1	Factor: 12107386914186167519