2 377 447 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
2965594414531087177	19	61.4	2012-05-31 18:43:05

ECM

Digits	B1	Curves
25	50000	178 / 280

Estimated T-Level: 23.2 ⓘ

TF below 2^72 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Darren Bedwell	C596D1A6856E8C31	0
Verified (Factored)	1999-10-15	Alastair Knox	C596D1A6856E8C31	226386

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-12	Oliver Kruse	88CD1C7361365604	1	1396761	5	3
Verified	2017-11-25	kkmrkkblmbrbk	88CD1C7361365604	1	1708822	5	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-25	kkmrkkblmbrbk	C-PRP	M2377447/2965594414531087177 : 88CD1C7361365604 PRP: Verified PRP without proof (not generated)
2017-10-12	Oliver Kruse	C-PRP	M2377447/2965594414531087177 : 88CD1C7361365604 PRP: Verified PRP without proof (not generated)
2012-05-31	Sebastian Hornbostel	F-ECM	Factor: 2965594414531087177
2010-12-28	markr	NF-PM1	B1=100000, B2=2025000, E=6
2010-11-15	Joss	NF-PM1	B1=20000
2010-11-07	Joss	NF-PM1	B1=15000
2009-01-14	Sturle Sunde	NF	no factor from 2^60 to 2^61