1 716 667 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
5842478394291864250537	22	72.3	2020-04-08 23:15:11

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Ed Knapton	CD86DCD7280938D5	0
Verified (Factored)	1998-12-13	Stephen Jazdzewski	CD86DCD7280938D5	1381969
Verified (Factored)	2015-06-27	MadPoo	CD86DCD7280938D5	483155

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-04-09	M Miller	7493C744CA6DF219	1	1259119	5	3
Verified	2020-04-10	Ivan M	7493C744CA6DF219	1	1141159	5	3

History

Date	User	Type	Result
2020-04-10	Ivan M	C-PRP	M1716667/5842478394291864250537 : 7493C744CA6DF219 PRP: Verified PRP without proof (not generated)
2020-04-09	M Miller	C-PRP	M1716667/5842478394291864250537 : 7493C744CA6DF219 PRP: Verified PRP without proof (not generated)
2020-04-08	MarkS	F-ECM	Factor: 5842478394291864250537 / (ECM curve 2, B1=50000, B2=5000000, Sigma=5699554646540678)
2019-06-17	TJAOI	NF	no factor from 2^67 to 2^68
2018-10-16	Joss	NF-PM1	B1=1716667, B2=188833370, E=12
2018-08-21	Joss	NF-PM1	B1=1716667, B2=171666700, E=12
2018-05-28	TJAOI	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-09-01	ramgeis	NF	no factor from 2^65 to 2^66
2015-08-08	mikr	NF-PM1	B1=3642200, B2=123456789, E=12
2015-07-24	Joss	NF-PM1	B1=1562783
2015-07-13	Joss	NF-PM1	B1=1420712
2015-07-07	Joss	NF-PM1	B1=1291557
2015-06-27	MadPoo	C-LL	CD86DCD7280938D5
2015-06-25	Joss	NF-PM1	B1=1174143
2015-06-08	Joss	NF-PM1	B1=1067403
2015-05-26	Joss	NF-PM1	B1=970367
2015-05-22	Joss	NF-PM1	B1=882152
2015-05-07	Joss	NF-PM1	B1=801957
2015-05-02	snme2pm1	NF	no factor from 2^64 to 2^65
2015-05-02	snme2pm1	NF	no factor from 2^63 to 2^64
2015-05-01	Joss	NF-PM1	B1=729052
2015-04-08	Joss	NF-PM1	B1=602523
2015-03-14	Joss	NF-PM1	B1=497954
2015-03-06	Joss	NF-PM1	B1=452686
2015-02-22	Joss	NF-PM1	B1=411533
2015-02-16	Joss	NF-PM1	B1=374121
2015-02-03	Joss	NF-PM1	B1=309191
2015-01-09	Joss	NF-PM1	B1=281083
2014-10-05	Joss	NF-PM1	B1=187389
2014-05-03	Joss	NF-PM1	B1=150000
2014-04-01	Joss	NF-PM1	B1=100000
2011-02-09	Carsten Kossendey	NF-PM1	B1=90000, B2=1507500, E=6
2010-10-27	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-22	Architects Cubed	NF	no factor from 2^60 to 2^61

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