1 979 437 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
783669687678167681	18	59.4	old
8257094089941880595327	22	72.8	2022-07-04 05:46:33

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	58 / 640

Estimated T-Level: 25.5 ⓘ

TF below 2^80 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Thomas Honold	3AB659C5488CB09B	0
Verified (Factored)	1998-12-27	Nuutti Kuosa	3AB659C5488CB09B	1282990

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-05	Oliver Kruse	B4E4669816467AA2	1	0	1	3
Verified (Factored)	2017-11-12	kkmrkkblmbrbk	B4E4669816467AA2	1	1029651	1	3
Verified	2022-07-10	kutens	238B3696A3E24F1B	2	1327202	5	3

History

Date	User	Type	Result
2023-09-01	Kevin_9611	NF-PM1	B1=1000000, B2=1685121900
2022-08-13	USAFSS	NF-PM1	B1=88000, B2=95986800
2022-07-10	Kang, Jia-Chen	CERT	PRP Certification Proof certified good
2022-07-10	kutens	C-PRP	M1979437/783669687678167681/8257094089941880595327 : 238B3696A3E24F1B PRP proof power = 7 PRP: Verified Proof certified good
2022-07-04	debrouxl	F-ECM	Factor: 8257094089941880595327 / (ECM curve 1, B1=50000, B2=6900000, Sigma=7524470941424881)
2017-11-12	kkmrkkblmbrbk	C-PRP	M1979437/783669687678167681 : B4E4669816467AA2 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1979437/783669687678167681 : B4E4669816467AA2 PRP: Verified (Factored) PRP without proof (not generated)