2 079 997 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
64859755620456769500943	23	75.8	2020-06-02 02:06:24

ECM

Digits	B1	Curves
25	50000	94 / 280

Estimated T-Level: 21.7 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Linton	695641333A4711C6	0
Verified (Factored)	1999-01-29	Mistel	695641333A4711C6	292114
Verified (Factored)	2017-06-06	kkmrkkblmbrbk	695641333A4711C6	1017839

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-06-02	M Miller	2AB115248BDD8A87	1	967716	5	3
Verified	2020-06-04	Luigi Morelli	2AB115248BDD8A87	1	143380	5	3

History

Date	User	Type	Result
2020-06-04	Luigi Morelli	C-PRP	M2079997/64859755620456769500943 : 2AB115248BDD8A87 PRP: Verified PRP without proof (not generated)
2020-06-02	M Miller	C-PRP	M2079997/64859755620456769500943 : 2AB115248BDD8A87 PRP: Verified PRP without proof (not generated)
2020-06-02	mnd9	F-ECM	Factor: 64859755620456769500943 / (ECM curve 1, B1=50000, B2=5000000, Sigma=7904449624142714)
2019-04-01	chuenkit	NF	no factor from 2^67 to 2^68
2017-06-06	kkmrkkblmbrbk	C-LL	695641333A4711C6
2017-05-13	Joss	NF-PM1	B1=390312, B2=3903120, E=6
2017-03-27	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2016-11-11	Joss	NF-PM1	B1=315260
2016-11-05	Joss	NF-PM1	B1=262717
2016-11-04	Joss	NF-PM1	B1=218931
2016-09-14	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-07-16	Joss	NF-PM1	B1=182443, B2=6210000, E=12
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-11-05	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-31	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-31	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-09-02	ramgeis	NF	no factor from 2^62 to 2^63
2012-03-17	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-21	James Heinrich	NF-PM1	B1=135000, B2=3105000, E=6
2011-01-07	Joss	NF-PM1	B1=50000
2010-12-28	Joss	NF-PM1	B1=30000
2009-07-25	USAFSS	NF-PM1	B1=20000, B2=260000
2009-01-03	Sturle Sunde	NF	no factor from 2^60 to 2^61

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