346 601 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
40804764186708120407866457	26	85.1	2015-12-03 05:39:08

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	200 / 640

Estimated T-Level: 26.6 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	CBD	0
Verified (Factored)		Unknown	0CBD	0
Verified (Factored)		Guillermo Ballester Valor	EC36027BDB288CBD	0
Verified (Factored)		Eivind Triel	EC36027BDB288CBD	283103
Verified (Factored)	2002-02-03	Dennis Pope	EC36027BDB288CBD	243328

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-23	Oliver Kruse	EE07D68B6FD632D1	1	0	1	3
Verified	2017-10-13	Oliver Kruse	EE07D68B6FD632D1	1	27539	1	3
Verified	2017-12-13	ATH	EE07D68B6FD632D1	1	163494	1	3
Unverified (Reliable)	2020-04-18	Oliver Kruse	8F1E4DA371B8C0__	1	252975	5	3

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2024-03-15	-Anonymous-	factor ECM small	C1S2	0.00 %	2024-05-03

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2020-04-18	Oliver Kruse	C-PRP	M346601/40804764186708120407866457 : 8F1E4DA371B8C0__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-12-13	ATH	C-PRP	M346601/40804764186708120407866457 : EE07D68B6FD632D1 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-10-13	Oliver Kruse	C-PRP	M346601/40804764186708120407866457 : EE07D68B6FD632D1 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-23	Oliver Kruse	C-PRP	M346601/40804764186708120407866457 : EE07D68B6FD632D1 PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M346601/40804764186708120407866457 : EE07D68B6FD632D1 PRP without proof (not generated)
2015-12-03	bam	F-ECM	Factor: 40804764186708120407866457 / (ECM curve 3, B1=250000, B2=25000000)
2015-07-25	NR	NF	no factor from 2^61 to 2^62
2013-06-25	Sid & Andy	NF	no factor from 2^60 to 2^61
2010-05-21	Bud	NF-PM1	B1=10000000, B2=200000000, E=12
2009-01-25	Sturle Sunde	NF	no factor from 2^59 to 2^60
2008-12-30	Sturle Sunde	NF	no factor from 2^58 to 2^59