4 205 743 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
9723583637519614939289	22	73.0	2022-04-01 07:34:34

ECM

Digits	B1	Curves
25	50000	12 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-03-17	Craig Feifarek	CB0A136AA0294FEA	0
Verified (Factored)	2000-03-15	Craig Etter	CB0A136AA0294FEA	3726050

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-04-07	Poao	66B9EAD62D2F9D27	1	571068	5	3

P-1 factors

Date	Factor	B1	B2
2022-04-01	9723583637519614939289	6200000	15965654250

History

Date	User	Type	Result
2022-04-07	Kristaps	CERT	PRP Certification Proof certified good
2022-04-07	Poao	C-PRP	M4205743/9723583637519614939289 : 66B9EAD62D2F9D27 PRP proof power = 7 PRP: Verified Proof certified good
2022-04-01	DRobinsonPE	F-PM1	Factor: 9723583637519614939289 / (P-1, B1=6200000, B2=15965654250)
2021-04-30	Dylan Delgado	NF-PM1	B1=2000000, B2=172000000
2021-01-25	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-01-23	-Anonymous-	NF	no factor from 2^70 to 2^71
2021-01-22	-Anonymous-	NF	no factor from 2^69 to 2^70
2021-01-22	-Anonymous-	NF	no factor from 2^68 to 2^69
2018-12-15	Yxinity	NF	no factor from 2^67 to 2^68
2018-11-09	chuenkit	NF	no factor from 2^67 to 2^68
2017-12-27	Yxinity	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-07-25	David Campeau	NF-PM1	B1=1145000, B2=30915000, E=12
2015-06-07	snme2pm1	NF	no factor from 2^65 to 2^66
2013-11-19	David Campeau	NF	no factor from 2^64 to 2^65
2013-11-06	Jayder	NF	no factor from 2^63 to 2^64
2012-01-19	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-12-05	Squeeky_Squirrel	NF-PM1	B1=75000, B2=1368750, E=6
2011-08-10	Squeeky_Squirrel	NF-PM1	B1=50000, B2=737500, E=6
2011-01-25	markr	NF	no factor from 2^61 to 2^62
2009-08-07	Carsten Kossendey	NF-PM1	B1=25000, B2=337500

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