3 122 957 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
2457667182442226308199	22	71.1	2021-07-31 08:45:11

ECM

Digits	B1	Curves
25	50000	70 / 280

Estimated T-Level: 21.3 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-02-01	Peter Brockman	D0CCA5A2672C6C14	0
Verified (Factored)	1999-09-07	Jon Fournie	D0CCA5A2672C6C14	2920387

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-08-01	/r/counting	DC819CC25E72BC27	1	781589	5	3

History

Date	User	Type	Result
2022-02-20	Joss	NF-PM1	B1=1000000, B2=128282700
2021-08-01	curtisc	CERT	PRP Certification Proof certified good
2021-08-01	/r/counting	C-PRP	M3122957/2457667182442226308199 : DC819CC25E72BC27 PRP proof power = 7 PRP: Verified Proof certified good
2021-07-31	daveward2005	F-ECM	Factor: 2457667182442226308199 / (ECM curve 6, B1=50000, B2=5000000, Sigma=2611146811632936)
2021-06-28	TJAOI	NF	no factor from 2^68 to 2^69
2019-01-14	TJAOI	NF	no factor from 2^67 to 2^68
2018-11-26	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2018-08-14	Joss	NF-PM1	B1=420000, B2=3780000
2018-08-13	Joss	NF-PM1	B1=420000, B2=3360000
2018-08-07	Joss	NF-PM1	B1=420000, B2=1260000
2018-08-06	Joss	NF-PM1	B1=420000, B2=840000
2017-04-14	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-06-14	Tha	NF	no factor from 2^65 to 2^66
2015-02-11	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-11	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-12-04	markr	NF	no factor from 2^61 to 2^62
2011-12-04	markr	NF-PM1	B1=210000, B2=5407500, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=180000
2009-04-13	S485122	NF	no factor from 2^60 to 2^61

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