3 121 333 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
86562964671410808227209	23	76.2	2021-11-04 06:14:53

ECM

Digits	B1	Curves
25	50000	72 / 280

Estimated T-Level: 21.3 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-03-03	Stephen Tam	0A793C2E981F0E3D	0
Verified (Factored)	1999-05-23	Marc Getty / Phil Fizur	0A793C2E981F0E3D	1337635

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-11-06	kutens	68F79954085E9DFF	1	154544	5	3

History

Date	User	Type	Result
2022-02-20	Joss	NF-PM1	B1=1000000, B2=128282700
2021-11-06	Ben Delo	CERT	PRP Certification Proof certified good
2021-11-06	kutens	C-PRP	M3121333/86562964671410808227209 : 68F79954085E9DFF PRP proof power = 7 PRP: Verified Proof certified good
2021-11-04	kutens	F-ECM	Factor: 86562964671410808227209 / (ECM curve 1, B1=50000, B2=6700000, Sigma=4269231168679302)
2021-07-22	TJAOI	NF	no factor from 2^68 to 2^69
2019-01-21	TJAOI	NF	no factor from 2^67 to 2^68
2018-11-15	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2018-07-17	Joss	NF-PM1	B1=692144, B2=3460720
2018-07-17	Joss	NF-PM1	B1=692144, B2=2768576
2018-07-16	Joss	NF-PM1	B1=692144, B2=2076432
2017-04-14	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-09-29	Squeeky_Squirrel	NF-PM1	B1=195000, B2=5460000, E=12
2015-06-11	Tha	NF	no factor from 2^65 to 2^66
2015-02-11	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-11	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-11-22	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-08-27	Squeeky_Squirrel	NF-PM1	B1=105000, B2=2126250, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=180000
2009-04-14	S485122	NF	no factor from 2^60 to 2^61

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