3 650 447 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
730622574382879410073	21	69.3	2020-11-15 04:47:05

ECM

Digits	B1	Curves
25	50000	22 / 280

Estimated T-Level: 20.4 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Craig Smith	661EE5287573EE57	0
Verified (Factored)	1999-08-07	John Lawrence	661EE5287573EE57	2910571

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-11-16	Joe S.	FCDB172D71921968	1	245619	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
2020-11-16	ATH	CERT	PRP Certification Proof certified good
2020-11-16	Joe S.	C-PRP	M3650447/730622574382879410073 : FCDB172D71921968 PRP proof power = 7 PRP: Verified Proof certified good
2020-11-15	axn	F-ECM	Factor: 730622574382879410073 / (ECM curve 3, B1=50000, B2=5000000, Sigma=2082441919564901)
2020-11-08	axn	NF	no factor from 2^68 to 2^69
2020-09-05	axn	NF-PM1	B1=30000000, B2=600000000, E=12
2019-02-13	Yxinity	NF	no factor from 2^67 to 2^68
2017-03-02	Joss	NF-PM1	B1=241228, B2=2412280, E=6
2017-01-29	Joss	NF-PM1	B1=167520
2016-12-29	Joss	NF-PM1	B1=129600
2016-12-28	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-06-12	Joss	NF-PM1	B1=108000, 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
2015-01-22	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-22	VictordeHollander	NF	no factor from 2^63 to 2^64
2012-06-05	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2012-01-29	Squeeky_Squirrel	NF-PM1	B1=90000, B2=1642500, E=6
2011-05-16	markr	NF	no factor from 2^61 to 2^62
2009-07-07	Carsten Kossendey	NF-PM1	B1=20000, B2=250000
2009-03-10	S485122	NF	no factor from 2^60 to 2^61

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