2 142 403 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
1923226682254020064801849	25	80.7	2018-07-24 04:57:16

ECM

Digits	B1	Curves
25	50000	137 / 280

Estimated T-Level: 22.4 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Bruce Loving	3204C279A25FFCD7	0
Verified (Factored)	1999-01-29	Jakob Keis Hansen	3204C279A25FFCD7	697632
Verified (Factored)	2018-04-07	kkmrkkblmbrbk	3204C279A25FFCD7	511930

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-07-24	ATH	74E8ABE2DFD3DB57	1	1692374	5	3
Verified	2018-07-24	kkmrkkblmbrbk	74E8ABE2DFD3DB57	1	311573	5	3

History

Date	User	Type	Result
2018-07-24	kkmrkkblmbrbk	C-PRP	M2142403/1923226682254020064801849 : 74E8ABE2DFD3DB57 PRP: Verified PRP without proof (not generated)
2018-07-24	ATH	C-PRP	M2142403/1923226682254020064801849 : 74E8ABE2DFD3DB57 PRP: Verified PRP without proof (not generated)
2018-07-24	bam	F-ECM	Factor: 1923226682254020064801849 / (ECM curve 2, B1=50000, B2=5000000)
2018-04-07	kkmrkkblmbrbk	C-LL	3204C279A25FFCD7
2017-11-02	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2017-04-27	Joss	NF-PM1	B1=422289, B2=4222890, E=6
2017-04-22	Joss	NF-PM1	B1=351908, B2=3519080, E=6
2016-11-12	Joss	NF-PM1	B1=211144
2016-10-29	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-06-03	Joss	NF-PM1	B1=175954, 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=159959
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

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