1 730 789 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
183109271369597298524167	24	77.3	2020-05-18 10:35:22
338309737791409255358103809	27	88.1	2015-09-15 01:38:42

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	C33F1FFA7381B5D4	0
Verified (Factored)	1998-12-06	Gary Neilsen	C33F1FFA7381B5D4	1639898
Verified (Factored)	2015-07-10	MadPoo	C33F1FFA7381B5D4	1147699

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-30	alpertron	B4897EF60B0D1E25	1	0	1	3
Verified (Factored)	2017-10-19	Oliver Kruse	B4897EF60B0D1E25	1	954837	1	3
Verified	2020-05-18	M Miller	35BC1A581FB0DFC2	2	1251820	5	3
Verified	2020-05-19	marssystems	35BC1A581FB0DFC2	2	390649	5	3

P-1 factors

Date	Factor	B1	B2
2015-09-15	338309737791409255358103809	3642200	123456789

History

Date	User	Type	Result
2020-05-19	marssystems	C-PRP	M1730789/338309737791409255358103809/183109271369597298524167 : 35BC1A581FB0DFC2 PRP: Verified PRP without proof (not generated)
2020-05-18	M Miller	C-PRP	M1730789/183109271369597298524167/338309737791409255358103809 : 35BC1A581FB0DFC2 PRP: Verified PRP without proof (not generated)
2020-05-18	TJAOI	F-ECM	Factor: 183109271369597298524167 / (ECM curve 50, B1=50000, B2=5000000)
2017-10-19	Oliver Kruse	C-PRP	M1730789/338309737791409255358103809 : B4897EF60B0D1E25 PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1730789/338309737791409255358103809 : B4897EF60B0D1E25 PRP: Verified PRP without proof (not generated)
2015-09-15	mikr	F-PM1	Factor: 338309737791409255358103809 / (P-1, B1=3642200, B2=123456789, E=12)
2015-09-02	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-31	Joss	NF-PM1	B1=1604442
2015-07-21	Joss	NF-PM1	B1=1458584
2015-07-13	Joss	NF-PM1	B1=1325986
2015-07-10	MadPoo	C-LL	C33F1FFA7381B5D4
2015-07-07	Joss	NF-PM1	B1=1205442
2015-06-25	Joss	NF-PM1	B1=1095857
2015-06-08	Joss	NF-PM1	B1=996234
2015-05-22	Joss	NF-PM1	B1=905668
2015-05-04	snme2pm1	NF	no factor from 2^64 to 2^65
2015-05-04	snme2pm1	NF	no factor from 2^63 to 2^64
2015-05-01	Joss	NF-PM1	B1=823335
2015-04-08	Joss	NF-PM1	B1=680443
2015-03-29	Joss	NF-PM1	B1=618585
2015-02-06	Joss	NF-PM1	B1=562350
2015-01-29	Joss	NF-PM1	B1=281175
2015-01-27	Joss	NF-PM1	B1=255614
2014-12-02	Joss	NF-PM1	B1=211252
2014-09-10	Joss	NF-PM1	B1=174168
2014-05-04	Joss	NF-PM1	B1=137084
2014-04-04	Joss	NF-PM1	B1=100000
2011-02-09	Carsten Kossendey	NF-PM1	B1=90000, B2=1530000, E=6
2010-11-18	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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