3 259 561 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
17446446998699419901183	23	73.9	2021-05-26 06:51:44

ECM

Digits	B1	Curves
25	50000	46 / 280

Estimated T-Level: 20.8 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		john rheinstein	3782703B0D9058C3	0
Verified (Factored)	1999-09-14	Wojciech Florek	3782703B0D9058C3	2394652

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-05-28	kutens	C2E37971C0C657D6	1	2355022	5	3

History

Date	User	Type	Result
2022-09-12	Joss	NF-PM1	B1=1000000, B2=241152450
2022-04-02	Joss	NF-PM1	B1=1000000, B2=134316000
2021-05-28	garo	CERT	PRP Certification Proof certified good
2021-05-28	kutens	C-PRP	M3259561/17446446998699419901183 : C2E37971C0C657D6 PRP proof power = 7 PRP: Verified Proof certified good
2021-05-26	kutens	F-ECM	Factor: 17446446998699419901183 / (ECM curve 5, B1=50000, B2=6700000, Sigma=2809465844876612)
2021-02-07	ViliamF	NF	no factor from 2^68 to 2^69
2020-09-12	mikr	NF-PM1	B1=4000000, B2=150000000, E=12
2019-01-07	TJAOI	NF	no factor from 2^67 to 2^68
2017-03-29	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-01-19	Joss	NF-PM1	B1=415800, B2=4158000, E=6
2015-06-28	Tha	NF	no factor from 2^65 to 2^66
2015-02-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-07	Joss	NF-PM1	B1=99382
2014-06-11	Joss	NF-PM1	B1=79691
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-09-22	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-09-14	USAFSS	NF-PM1	B1=60000, B2=1050000, E=6
2009-07-05	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-04-04	S485122	NF	no factor from 2^60 to 2^61

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