1 740 821 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
34247778430771140794970193	26	84.8	2020-06-25 15:29:59

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	108 / 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)		phil kenny	D3D1D3A9BE590EB0	0
Verified (Factored)	1999-01-10	Hgin normaalilyseo	D3D1D3A9BE590EB0	1068561
Verified (Factored)	2015-06-27	MadPoo	D3D1D3A9BE590EB0	1658387

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-06-26	atrench	112B575E0267555F	1	316641	5	3
Verified	2020-06-26	xyuzyz	112B575E0267555F	1	83417	5	3

History

Date	User	Type	Result
2020-06-26	xyuzyz	C-PRP	M1740821/34247778430771140794970193 : 112B575E0267555F PRP: Verified PRP without proof (not generated)
2020-06-26	atrench	C-PRP	M1740821/34247778430771140794970193 : 112B575E0267555F PRP: Verified PRP without proof (not generated)
2020-06-25	debrouxl	F-ECM	Factor: 34247778430771140794970193 / (ECM curve 2, B1=50000, B2=5000000)
2019-07-31	TJAOI	NF	no factor from 2^67 to 2^68
2018-10-18	Joss	NF-PM1	B1=1740821, B2=191490310, E=12
2018-08-06	Joss	NF-PM1	B1=1740821, B2=174082100, E=12
2018-01-22	TJAOI	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-09-04	ramgeis	NF	no factor from 2^65 to 2^66
2015-06-27	MadPoo	C-LL	D3D1D3A9BE590EB0
2015-05-12	snme2pm1	NF	no factor from 2^64 to 2^65
2015-05-12	snme2pm1	NF	no factor from 2^63 to 2^64
2015-04-13	mikr	NF-PM1	B1=2475400, B2=86660000, E=12
2014-12-02	Joss	NF-PM1	B1=210610
2014-09-11	Joss	NF-PM1	B1=173740
2014-05-06	Joss	NF-PM1	B1=136870
2014-04-05	Joss	NF-PM1	B1=100000
2011-02-10	Carsten Kossendey	NF-PM1	B1=95000, B2=1543750, E=6
2010-11-18	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-20	Architects Cubed	NF	no factor from 2^60 to 2^61

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