2 685 383 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
3454434549043963357361	22	71.5	2020-09-08 10:07:45

ECM

Digits	B1	Curves
25	50000	47 / 280

Estimated T-Level: 20.8 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Paul Heuwinkel	13539E9EB2D8EED3	0
Verified (Factored)	1999-05-09	Gary Neilsen	13539E9EB2D8EED3	1762405
Verified (Factored)	2018-07-27	kkmrkkblmbrbk	13539E9EB2D8EED3	1210074

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-09-08	mrh	F41BF7E70A13A9EE	1	2443050	5	3

History

Date	User	Type	Result
2020-09-08	Ben Delo	CERT	PRP Certification Proof certified good
2020-09-08	mrh	C-PRP	M2685383/3454434549043963357361 : F41BF7E70A13A9EE PRP proof power = 7 PRP: Verified Proof certified good
2020-09-08	daveward2005	F-ECM	Factor: 3454434549043963357361 / (ECM curve 2, B1=50000, B2=5000000)
2019-07-05	BigBrother	NF-PM1	B1=3000000, B2=90000000, E=12
2019-04-29	TJAOI	NF	no factor from 2^67 to 2^68
2018-09-03	Joss	NF-PM1	B1=486584
2018-07-27	kkmrkkblmbrbk	C-LL	13539E9EB2D8EED3
2017-09-13	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-04-04	Joss	NF-PM1	B1=335487, B2=3354870, E=6
2017-01-10	Joss	NF-PM1	B1=232978
2016-12-19	Joss	NF-PM1	B1=194149
2016-06-15	Joss	NF-PM1	B1=161791, B2=4567500, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-01-26	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-23	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-23	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-05-09	markr	NF	no factor from 2^61 to 2^62
2011-02-02	markr	NF-PM1	B1=105000, B2=2283750, E=6
2010-12-26	Joss	NF-PM1	B1=30000
2010-12-22	Joss	NF-PM1	B1=20000
2009-01-31	Sturle Sunde	NF	no factor from 2^60 to 2^61

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