2 054 471 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
41425672179242665817311	23	75.1	2020-06-29 18:37:28

ECM

Digits	B1	Curves
25	50000	105 / 280

Estimated T-Level: 21.9 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Joel Armengaud	D7D3A888A3451B40	0
Verified (Factored)		Stephen Wood	D7D3A888A3451B40	0
Verified (Factored)	2015-11-13	MadPoo	D7D3A888A3451B40	1071869

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-06-30	Christoph Zenger	9E94347F87178BCD	1	1420016	5	3
Verified	2020-06-30	xyuzyz	9E94347F87178BCD	1	1654283	5	3

History

Date	User	Type	Result
2020-06-30	xyuzyz	C-PRP	M2054471/41425672179242665817311 : 9E94347F87178BCD PRP: Verified PRP without proof (not generated)
2020-06-30	Christoph Zenger	C-PRP	M2054471/41425672179242665817311 : 9E94347F87178BCD PRP: Verified PRP without proof (not generated)
2020-06-29	GAN	F-ECM	Factor: 41425672179242665817311 / (ECM curve 3, B1=50000, B2=5000000, Sigma=37721560204387)
2019-03-24	chuenkit	NF	no factor from 2^67 to 2^68
2017-02-24	mikr	NF-PM1	B1=3600000, B2=180000000, E=12
2017-01-29	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2016-11-05	Joss	NF-PM1	B1=324000
2016-09-22	Joss	NF-PM1	B1=270000, B2=5832000, E=6
2016-08-18	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-05-15	Joss	NF-PM1	B1=270000, B2=4860000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-11-13	MadPoo	C-LL	D7D3A888A3451B40
2015-11-03	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-26	Joss	NF-PM1	B1=166241
2013-09-01	ramgeis	NF	no factor from 2^62 to 2^63
2012-03-11	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-21	James Heinrich	NF-PM1	B1=135000, B2=2902500, E=6
2011-01-06	Joss	NF-PM1	B1=50000
2010-12-26	Joss	NF-PM1	B1=30000
2009-05-24	Rob_Dee	NF-PM1	B1=20000, B2=280000
2009-01-02	Sturle Sunde	NF	no factor from 2^60 to 2^61

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