2 055 679 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
49575296358145177499038727	26	85.4	2021-04-23 09:10:57

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	178 / 640

Estimated T-Level: 26.4 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Joel Armengaud	6F97CBE7A32C6775	0
Verified (Factored)		Stephen Wood	6F97CBE7A32C6775	0
Verified (Factored)	2015-11-13	MadPoo	6F97CBE7A32C6775	1290910

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-04-24	XZT	CA506780C57F09A4	1	455500	5	3
Verified	2021-04-30	Kirill Frolov	CA506780C57F09A4	1	1459430	5	3

History

Date	User	Type	Result
2021-04-30	Kirill Frolov	C-PRP	M2055679/49575296358145177499038727 : CA506780C57F09A4 PRP proof power = 7 PRP: Verified PRP proof never uploaded
2021-04-24	Milwizzle	CERT	PRP Certification Proof certified good
2021-04-24	XZT	C-PRP	M2055679/49575296358145177499038727 : CA506780C57F09A4 PRP proof power = 7 PRP: Verified Proof certified good
2021-04-23	daveward2005	F-ECM	Factor: 49575296358145177499038727 / (ECM curve 4, B1=50000, B2=5000000, Sigma=7925941055475095)
2019-03-24	chuenkit	NF	no factor from 2^67 to 2^68
2017-03-13	mikr	NF-PM1	B1=3600000, B2=180000000, E=12
2017-02-02	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2016-11-06	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	6F97CBE7A32C6775
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=166223
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
2009-06-21	USAFSS	NF-PM1	B1=20000, B2=260000
2009-01-03	Sturle Sunde	NF	no factor from 2^60 to 2^61

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