3 668 087 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
12825232620669744858607	23	73.4	2021-06-30 22:04:18

ECM

Digits	B1	Curves
25	50000	19 / 280

Estimated T-Level: 20.3 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Helmut Zeisel	7DE9B957EB33632C	0
Verified (Factored)	1999-08-16	Calum Adams	7DE9B957EB33632C	1014807

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-07-01	tottenhoff	1D3C8AC56652CAC9	1	3340608	5	3

History

Date	User	Type	Result
2022-05-25	Joss	NF-PM1	B1=100000, B2=130364850
2022-03-22	Joss	NF-PM1	B1=100000
2022-03-04	Joss	NF-PM1	B1=90000
2021-07-01	Claude Portenier	CERT	PRP Certification Proof certified good
2021-07-01	tottenhoff	C-PRP	M3668087/12825232620669744858607 : 1D3C8AC56652CAC9 PRP proof power = 7 PRP: Verified Proof certified good
2021-06-30	kutens	F-ECM	Factor: 12825232620669744858607 / (ECM curve 7, B1=50000, B2=6800000, Sigma=7134770694805538)
2021-02-24	axn	NF	no factor from 2^69 to 2^70
2020-11-11	axn	NF	no factor from 2^68 to 2^69
2020-10-11	axn	NF-PM1	B1=30000000, B2=600000000, E=12
2018-11-19	TJAOI	NF	no factor from 2^67 to 2^68
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 from 2^66 to 2^67
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
2016-06-24	Joss	NF-PM1	B1=90000, B2=3285000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-10-20	ramgeis	NF	no factor from 2^65 to 2^66
2015-01-23	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-23	VictordeHollander	NF	no factor from 2^63 to 2^64
2012-06-05	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2012-02-06	Squeeky_Squirrel	NF-PM1	B1=90000, B2=1642500, E=6
2011-06-04	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-07-11	Carsten Kossendey	NF-PM1	B1=20000, B2=260000
2009-03-09	S485122	NF	no factor from 2^60 to 2^61

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