2 826 919 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

No factors below 2⁷⁰

TF target 2⁶³

TF below 2^73 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	2627088
B2 =	5503103760

ECM

Digits	B1	Curves
25	50000	191 / 280

Estimated T-Level: 23.4 ⓘ

Status	Date	User	Residue	Shift
Verified		IES R.Dieste-I.Larrosa	0D80B9719A8B1556	0
Verified	1999-05-02	Johan Schrooyen	0D80B9719A8B1556	851119
Verified	2018-09-09	kkmrkkblmbrbk	0D80B9719A8B1556	2647740

History

Date	User	Type	Result
2023-10-30	Joss	NF-PM1	B1=2627088, B2=5503103760
2023-10-10	Joss	NF-PM1	B1=2627088, B2=3024564270
2023-09-15	Joss	NF-PM1	B1=1000000, B2=5765609850
2023-06-22	TJAOI	NF	no factor from 2^69 to 2^70
2023-06-07	Joss	NF-PM1	B1=1000000, B2=2873961090
2023-03-03	Joss	NF-PM1	B1=1000000, B2=432341910
2021-05-13	TJAOI	NF	no factor from 2^68 to 2^69
2020-01-24	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2019-11-10	masser	NF-PM1	B1=3000000, B2=30000000, E=12
2019-01-03	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-09	kkmrkkblmbrbk	C-LL	0D80B9719A8B1556
2017-10-28	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-03-13	Joss	NF-PM1	B1=361303, B2=3613030, E=6
2016-12-14	Joss	NF-PM1	B1=301086
2016-11-03	Joss	NF-PM1	B1=250905
2016-10-27	Joss	NF-PM1	B1=174240
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-13	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-02-16	markr	NF	no factor from 2^61 to 2^62
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61

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