3 667 249 Exponent Status

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶⁴

Factored

Factor	Digits	Bits	Date
343439538302947378252521531857403032501081	42	138.0	2020-10-10 02:42:23

P-1 factors

Date	Factors	B1	B2
2020-10-10	343439538302947378252521531857403032501081	30000000	600000000

ECM

Digits	B1	Curves
25	50000	12 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift	Software
Factored		Wojciech Florek	1945115FECC47FDE	0	Linux 32-bit,Prime95,v14,(aka WQ2)
Factored	1999-09-22	Douglas Sykora	1945115FECC47FDE	2859677	Windows,Prime95,v17,(aka WT1)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2020-10-10	tottenhoff	E07E900B3AD087FE	1	2654708	5	3
Verified	Certified Good	2020-10-11	kutens	E07E900B3AD087FE	1	1438168	5	3

History

Date	User	Type	Result
2022-07-17	Joss	NF-PM1	B1=3667249, B2=3682510650
2022-04-06	Joss	NF-PM1	B1=1000000, B2=147585900
2020-10-11	curtisc	CERT	Proof certified good
2020-10-11	kutens	C-PRP	Proof Certified Good Proof Power: 7
2020-10-10	tottenhoff	C-PRP	M3667249/343439538302947378252521531857403032501081 : E07E900B3AD087FE
2020-10-10	axn	F-PM1	Factor: 343439538302947378252521531857403032501081 / B1=30000000, B2=600000000
2018-11-26	TJAOI	NF	no factor TF: 67-68
2017-02-12	Joss	NF-PM1	B1=241228, B2=2412280, E=6
2017-01-29	Joss	NF-PM1	B1=167520
2017-01-03	Gordon Spence	NF	no factor TF: 66-67
2016-12-30	Joss	NF-PM1	B1=129600
2016-12-24	Joss	NF-PM1	B1=108000
2016-10-02	Joss	NF-PM1	B1=90000, B2=3942000
2016-06-22	Joss	NF-PM1	B1=90000, B2=3285000, E=6
2016-02-23	Mark Rose	NF	no factor TF: 1-60
2016-02-23	Mark Rose	NF	no factor TF: 62-63
2015-10-19	ramgeis	NF	no factor TF: 65-66
2015-01-23	VictordeHollander	NF	no factor TF: 64-65
2015-01-23	VictordeHollander	NF	no factor TF: 63-64
2012-06-05	GrunwalderGIMP	NF	no factor TF: 1-63
2012-02-06	Squeeky_Squirrel	NF-PM1	B1=90000, B2=1642500, E=6
2011-06-08	Grant McCracken	NF	no factor TF: 61-62
2009-07-11	Carsten Kossendey	NF-PM1	B1=20000, B2=260000
2009-03-09	S485122	NF	no factor TF: 60-61
1999-09-22	-anonymous-	C-LL	1945115FECC47FDE

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