2 142 353 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
19477546178681635726777	23	74.0	2020-03-08 22:20:53

ECM

Digits	B1	Curves
25	50000	138 / 280

Estimated T-Level: 22.5 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Bruce Loving	4022674AA623D55E	0
Verified (Factored)	1999-02-07	James Arnold	4022674AA623D55E	171416
Verified (Factored)	2018-04-07	kkmrkkblmbrbk	4022674AA623D55E	627649

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-03-09	Niels_Mache_Nextcloud	491F92677324EB16	1	2015386	5	3
Verified	2020-03-09	ATH	491F92677324EB16	1	1956550	5	3

History

Date	User	Type	Result
2020-03-09	ATH	C-PRP	M2142353/19477546178681635726777 : 491F92677324EB16 PRP: Verified PRP without proof (not generated)
2020-03-09	Niels_Mache_Nextcloud	C-PRP	M2142353/19477546178681635726777 : 491F92677324EB16 PRP: Verified PRP without proof (not generated)
2020-03-08	mnd9	F-ECM	Factor: 19477546178681635726777 / (ECM curve 2, B1=50000, B2=5000000, Sigma=4584399901952868)
2019-04-15	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-07	kkmrkkblmbrbk	C-LL	4022674AA623D55E
2017-11-02	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2017-04-27	Joss	NF-PM1	B1=422294, B2=4222940, E=6
2017-04-22	Joss	NF-PM1	B1=351912, B2=3519120, E=6
2016-11-12	Joss	NF-PM1	B1=211147
2016-10-29	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-06-03	Joss	NF-PM1	B1=175956, B2=5265000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-12-27	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-28	Joss	NF-PM1	B1=159960
2013-09-07	ramgeis	NF	no factor from 2^62 to 2^63
2011-01-24	James Heinrich	NF-PM1	B1=130000, B2=2632500, E=6
2011-01-13	Joss	NF-PM1	B1=50000
2010-12-30	Joss	NF-PM1	B1=30000
2010-11-02	-Anonymous-	NF-PM1	B1=20000
2009-01-06	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-04	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password