3 741 743 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
249899795853758319839	21	67.8	2018-07-23 16:23:31

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)	1998-01-13	Erik Gault	2CC56290691BFB1F	0
Verified (Factored)	1999-08-22	Ivan Burns	2CC56290691BFB1F	2224044

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-07-24	_p95holder_	1698C17BC4B1ABC2	1	1613694	5	3
Verified	2018-07-24	ATH	1698C17BC4B1ABC2	1	837574	5	3

History

Date	User	Type	Result
2022-05-25	Joss	NF-PM1	B1=200000, B2=130364850
2022-02-25	Joss	NF-PM1	B1=200000
2020-06-20	Joss	NF-PM1	B1=374174, B2=3741743, E=6
2020-06-10	Joss	NF-PM1	B1=374174
2018-07-24	ATH	C-PRP	M3741743/249899795853758319839 : 1698C17BC4B1ABC2 PRP: Verified PRP without proof (not generated)
2018-07-24	_p95holder_	C-PRP	M3741743/249899795853758319839 : 1698C17BC4B1ABC2 PRP: Verified PRP without proof (not generated)
2018-07-23	TJAOI	F	Factor: 249899795853758319839 / TF: 67-68
2017-06-09	Joss	NF-PM1	B1=360000, B2=3600000, E=6
2016-11-05	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-26	ramgeis	NF	no factor from 2^65 to 2^66
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-09-10	Squeeky_Squirrel	NF-PM1	B1=180000, B2=4950000, E=6
2015-01-23	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-23	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-08-25	-Anonymous-	NF-PM1	B1=77154
2013-02-19	Squeeky_Squirrel	NF-PM1	B1=60000, B2=960000, E=6
2012-05-10	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-05-11	markr	NF	no factor to 2^62
2009-07-06	Carsten Kossendey	NF-PM1	B1=20000, B2=265000
2009-03-05	S485122	NF	no factor from 2^60 to 2^61

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