3 395 417 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
504575052166385173343	21	68.8	2021-06-01 06:48:47

ECM

Digits	B1	Curves
25	50000	33 / 280

Estimated T-Level: 20.6 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Robert Friberg	7734FC9EC974AE17	0
Verified (Factored)	1999-07-27	Stephen Kaluzny	7734FC9EC974AE17	245207

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-06-02	kutens	EEE872734C93F190	1	1429254	5	3

History

Date	User	Type	Result
2022-04-06	Joss	NF-PM1	B1=1000000, B2=123342450
2021-06-02	Bill Staffen	CERT	PRP Certification Proof certified good
2021-06-02	kutens	C-PRP	M3395417/504575052166385173343 : EEE872734C93F190 PRP proof power = 7 PRP: Verified Proof certified good
2021-06-01	Sergey Nosov	F-ECM	Factor: 504575052166385173343 / (ECM curve 4, B1=50000, B2=5000000)
2018-09-10	TJAOI	NF	no factor from 2^67 to 2^68
2017-03-12	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-09-16	Joss	NF-PM1	B1=291617, B2=5247000, 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
2015-10-30	Squeeky_Squirrel	NF-PM1	B1=165000, B2=4372500, E=6
2015-04-04	Gordon Spence	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
2014-10-13	Joss	NF-PM1	B1=97806
2014-07-04	Joss	NF-PM1	B1=78903
2012-11-15	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-10-24	USAFSS	NF-PM1	B1=60000, B2=945000, E=6
2011-08-21	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-07-11	Carsten Kossendey	NF-PM1	B1=15000, B2=206250
2009-03-25	S485122	NF	no factor from 2^60 to 2^61

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