3 986 677 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
119600311	9	26.8	old
669761737	9	29.3	2008-09-07 21:14:05
11856377399	11	33.5	2008-09-07 21:14:05
227478757631973148247	21	67.6	2018-12-28 05:37:48

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

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)	2017-11-12	Oliver Kruse	DBBD065796B3E399	3	2711860	5	3
Verified (Factored)	2017-12-19	kkmrkkblmbrbk	DBBD065796B3E399	3	456589	5	3
Verified	2018-12-29	Zero	DBBD065796B3E399	4	1339893	5	3

P-1 factors

Date	Factor	B1	B2
2018-12-28	227478757631973148247	11000	0

History

Date	User	Type	Result
2022-10-05	Joss	NF-PM1	B1=3986677, B2=503152650
2022-08-18	Joss	NF-PM1	B1=3986677, B2=414691200
2022-01-31	Joss	NF-PM1	B1=1000000, B2=1013050500
2020-07-08	Joss	NF-PM1	B1=631000, B2=19933385, E=12
2018-12-29	Zero	C-PRP	M3986677/119600311/669761737/11856377399/227478757631973148247 : DBBD065796B3E399 PRP: Verified PRP without proof (not generated)
2018-12-28	Joss	F-PM1	Factor: 227478757631973148247 / (P-1, B1=11000)
2017-12-19	kkmrkkblmbrbk	C-PRP	M3986677/119600311/669761737/11856377399 : DBBD065796B3E399 PRP: Verified PRP without proof (not generated)
2017-11-12	Oliver Kruse	C-PRP	M3986677/119600311/669761737/11856377399 : DBBD065796B3E399 PRP: Verified PRP without proof (not generated)
2008-09-07	Will Edgington	F	Factor: 11856377399
2008-09-07	Will Edgington	F	Factor: 669761737