2 263 067 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

No factors below 2⁷⁰

TF target 2⁶²

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

P-1

B1 =	9700000
B2 =	49940763180

ECM

Digits	B1	Curves
25	50000	203 / 280

Estimated T-Level: 23.6 ⓘ

Status	Date	User	Residue	Shift
Verified		Hgin normaalilyseo	DD681FB60A6D9927	0
Verified	1999-03-01	Gerhard H Wrodnigg	DD681FB60A6D9927	718563
Verified	2018-04-24	kkmrkkblmbrbk	DD681FB60A6D9927	1992031

History

Date	User	Type	Result
2024-04-19	TJAOI	NF	no factor from 2^69 to 2^70
2023-08-18	Sid & Andy	NF-PM1	B1=9700000, B2=49940763180
2023-07-08	Joss	NF-PM1	B1=1000000, B2=3799936140
2023-03-07	Joss	NF-PM1	B1=1000000, B2=1647746100
2022-11-23	Joss	NF-PM1	B1=1000000, B2=571651080
2021-07-15	TJAOI	NF	no factor from 2^68 to 2^69
2019-06-30	BigBrother	NF-PM1	B1=1000000, B2=20000000, E=12
2019-05-06	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-24	kkmrkkblmbrbk	C-LL	DD681FB60A6D9927
2017-01-15	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-03-29	Joss	NF-PM1	B1=342144, B2=3421440, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-10-30	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-10	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-10	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-02	Joss	NF-PM1	B1=128362
2013-12-06	Jerry Hallett	NF	no factor from 2^62 to 2^63
2012-05-05	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-04	markr	NF-PM1	B1=100000, B2=2100000, E=6
2010-11-12	Joss	NF-PM1	B1=30000
2010-11-07	Joss	NF-PM1	B1=15000
2009-01-11	Sturle Sunde	NF	no factor from 2^60 to 2^61

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