2 467 961 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
3285384425112569425787759	25	81.4	2015-07-14 01:55:36

ECM

Digits	B1	Curves
25	50000	68 / 280

Estimated T-Level: 21.2 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Lance Optican	BE92A6BB44997475	0
Verified (Factored)	1999-05-16	Oliver Krueger	BE92A6BB44997475	410661

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-14	kkmrkkblmbrbk	858EE978C43CF9C3	1	766063	5	3
Verified	2017-11-05	Oliver Kruse	858EE978C43CF9C3	1	217824	5	3

History

Date	User	Type	Result
2022-03-10	LordJulius	NF	no factor from 2^1 to 2^60
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-05	Oliver Kruse	C-PRP	M2467961/3285384425112569425787759 : 858EE978C43CF9C3 PRP: Verified PRP without proof (not generated)
2017-10-14	kkmrkkblmbrbk	C-PRP	M2467961/3285384425112569425787759 : 858EE978C43CF9C3 PRP: Verified PRP without proof (not generated)
2015-07-14	guru	F-ECM	Factor: 3285384425112569425787759 / (ECM curve 1, B1=50000, B2=5000000)
2015-03-03	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-03	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-10-22	David Campeau	NF-PM1	B1=590000, B2=15930000, E=12
2013-02-21	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-08	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2010-11-27	Joss	NF-PM1	B1=246796
2010-11-19	Joss	NF-PM1	B1=20000
2009-01-14	Sturle Sunde	NF	no factor from 2^60 to 2^61