867 211 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

No factors below 2⁶⁸

TF target 2⁴⁴

TF below 2^82 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	35000000
B2 =	9992300037720

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	162 / 640

Estimated T-Level: 26.3 ⓘ

Status	Date	User	Residue	Shift
Verified		David Slowinski	212B	0
Verified		Steve Kertes	51DA5E86DEB4212B	0
Verified	2002-01-28	Marc Getty / Phil Fizur	51DA5E86DEB4212B	838148
Verified	2015-04-11	MadPoo	51DA5E86DEB4212B	322159

History

Date	User	Type	Result
2024-03-10	Ethan O'Connor	NF-PM1	B1=35000000, B2=9992300037720
2023-03-30	masser	NF-PP1	Start=6/5, B1=6000000, B2=282000000
2023-03-16	masser	NF-PP1	Start=123/17, B1=6000000, B2=276000000
2023-03-16	masser	NF-PP1	Start=2/7, B1=6000000, B2=288000000
2022-08-26	lycorn	NF-PM1	B1=15000000, B2=1101081888270
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^59
2022-02-23	Gordon Spence	NF	no factor from 2^67 to 2^68
2019-03-21	lycorn	NF	no factor from 2^66 to 2^67
2018-05-18	BloodERazor	NF	no factor from 2^65 to 2^66
2016-02-12	lycorn	NF	no factor from 2^64 to 2^65
2015-12-01	Sid & Andy	NF-PM1	B1=8672110, B2=260163300, E=12
2015-10-11	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-10-11	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-04-11	MadPoo	C-LL	51DA5E86DEB4212B
2015-02-06	TJAOI	NF	no factor from 2^61 to 2^62
2013-11-09	David Campeau	NF-PM1	B1=2020000, B2=72720000, E=12
2012-10-25	Joss	NF-PM1	B1=1943951
2012-09-21	Joss	NF-PM1	B1=1734422
2012-03-29	Joss	NF-PM1	B1=1198888
2012-01-22	Joss	NF-PM1	B1=799258
2011-08-31	Joss	NF-PM1	B1=399629
2011-07-12	Joss	NF-PM1	B1=239777
2011-02-20	Joss	NF-PM1	B1=200000
2010-05-20	Architects Cubed	NF	no factor from 2^60 to 2^61

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