2 682 319 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
1683628505907704210119	22	70.5	2021-02-11 01:15:17

ECM

Digits	B1	Curves
25	50000	84 / 280

Estimated T-Level: 21.5 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Dax Prather	12615D53902828B8	0
Verified (Factored)	1998-07-11	Frank Heirtzler	12615D53902828B8	0
Verified (Factored)	1999-05-30	Paul R. Burnett	12615D53902828B8	1267192

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-02-12	xyuzyz	B0BD0F1AFA1F106F	1	1361579	5	3
Verified	2021-02-13	marssystems	B0BD0F1AFA1F106F	1	2536299	5	3

History

Date	User	Type	Result
2021-02-13	AG_ATH	CERT	PRP Certification Proof certified good
2021-02-13	marssystems	C-PRP	M2682319/1683628505907704210119 : B0BD0F1AFA1F106F PRP proof power = 7 PRP: Verified Proof certified good
2021-02-12	xyuzyz	C-PRP	M2682319/1683628505907704210119 : B0BD0F1AFA1F106F PRP: Verified PRP without proof (not generated)
2021-02-11	MarkS	F-ECM	Factor: 1683628505907704210119 / (ECM curve 4, B1=50000, B2=5000000, Sigma=3148133754728653)
2019-11-16	masser	NF-PM1	B1=2000000, B2=50000000, E=12
2019-05-13	TJAOI	NF	no factor from 2^67 to 2^68
2018-08-06	Joss	NF-PM1	B1=1483333, B2=14833330, E=12
2018-02-20	Joss	NF-PM1	B1=377778
2017-09-13	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-03-02	Joss	NF-PM1	B1=314815, B2=3148150, E=6
2016-12-29	Joss	NF-PM1	B1=218622
2016-12-16	Joss	NF-PM1	B1=182185
2016-06-01	Joss	NF-PM1	B1=151821, B2=4567500, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-01-25	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
2012-05-13	markr	NF	no factor from 2^61 to 2^62
2010-12-05	markr	NF-PM1	B1=105000, B2=2283750, E=6
2010-11-20	Joss	NF-PM1	B1=20000
2009-01-27	Sturle Sunde	NF	no factor from 2^60 to 2^61

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