1 757 267 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
17691115255786723031	20	63.9	2010-08-30 19:01:30
196917184462617896231	21	67.4	2020-06-16 15:02:57
1342661435639314055633	22	70.2	2020-08-14 09:28:58

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 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	Shift
Verified (Factored)		Ken Kriesel	532D415119A54897	0
Verified (Factored)	1998-12-13	Robert M. McCarroll	532D415119A54897	961798

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-03	Oliver Kruse	3A146C009635CBDC	1	0	1	3
Verified (Factored)	2017-11-04	kkmrkkblmbrbk	3A146C009635CBDC	1	473902	1	3
Verified (Factored)	2020-06-17	LaurV	E521E0F1863DCF44	2	1336332	5	3
Verified (Factored)	2020-06-17	ATH	E521E0F1863DCF44	2	1094978	5	3
Verified	2020-08-15	M Miller	E521E0F1863DCF44	3	311017	5	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2022-03-08	LordJulius	NF	no factor from 2^58 to 2^60
2020-08-15	ViliamF	CERT	PRP Certification Proof certified good
2020-08-15	M Miller	C-PRP	M1757267/17691115255786723031/196917184462617896231/1342661435639314055633 : E521E0F1863DCF44 PRP proof power = 7 PRP: Verified Proof certified good
2020-08-14	TJAOI	F-ECM	Factor: 1342661435639314055633 / (ECM curve 24, B1=50000, B2=5000000)
2020-06-17	ATH	C-PRP	M1757267/17691115255786723031/196917184462617896231 : E521E0F1863DCF44 PRP: Verified (Factored) PRP without proof (not generated)
2020-06-17	LaurV	C-PRP	M1757267/17691115255786723031/196917184462617896231 : E521E0F1863DCF44 PRP: Verified (Factored) PRP without proof (not generated)
2020-06-16	nordi	F-ECM	Factor: 196917184462617896231 / (ECM curve 27, B1=50000, B2=5000000, Sigma=6485878272135096)
2017-11-04	kkmrkkblmbrbk	C-PRP	M1757267/17691115255786723031 : 3A146C009635CBDC PRP: Verified (Factored) PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1757267/17691115255786723031 : 3A146C009635CBDC PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2010-08-30	Wolfgang Fluck	F-ECM	Factor: 17691115255786723031
2010-04-23	Architects Cubed	NF	no factor from 2^60 to 2^61