Talk:9 (number)

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Ennea- vs. nona-[edit]

In Greek numerical prefixes, the bottom of the article says that nona-, although technically Latin, it commonly used in a sequence that is normally Greek. Can anyone answer why?? 02:40, 24 Nov 2004 (UTC)

See by yourself how much this usage is widespread.
  • Special pages : all articles contains, for ennea :

Ennea Ennea- Enneacanthus Ennead Enneadecaeteris Enneadecagon Enneads Enneagon Enneagonal number Enneagram Enneagram of Process Enneakaidecagon Enneapterygius kermadecensis Enneas Enneberg

  • and for nona ...

Nona Nona- Nona (Roman) Nona (Stephen King)Nona (mythology) Nona (prefix) Nona Gaprindashvili Nona GayeNona Hendryx Nona Stephen King's story Nonabelian Nonabelian group Nonaccredited investor Nonacentennial Nonacontane Nonacosane Nonacquiescence Nonactin Nonadecagon Nonadecane Nonadjacent Nonagenarian Nonaggression pact Nonaggression treaty Nonagintillion Nonagon Nonagonal number Nonagram Nonaheptacontane Nonahexacontane

Now who is the barabarian organic chemist cristallographist who began with such meddle ? -- DLL .. T 08:29, 18 November 2006 (UTC)

Staying on topic[edit]

"The Christian Bible, a source of faith and guidance for 2.1 billion people around the world, is divided into nine subsections."

In the interests of keeping the facts about the number nine on-topic, I have changed this to:

"The Christian Bible is divided into nine subsections."

Laserbream 11:42, 16 May 2006 (UTC)

Fair enough. Though maybe it wouldn't hurt to list what these subsections are. Anton Mravcek 20:31, 16 May 2006 (UTC)

The article now states that the New Testament is divided into nine subsections. However, the New Testament article makes no mention of these divisions. Are these nine subsections factually accurate? If so, why is the fact important enough to justify mention in the number 9 article but not the New Testament article? I would like to remove this unless someone can provide more substantiation. Leeannedy 13:41, 18 November 2006 (UTC)

You can either remove it or stick in a "citation needed" tag. I'd remove it and put in the edit summary that I want someone to be able to list what these sections are before putting it back in the article. Anton Mravcek 22:44, 19 November 2006 (UTC)

Merging of the Disambiguation page[edit]

  • Keep as is - I feel that a disambiguation page is necessary. --Riley 21:56, 8 July 2006 (UTC)
Agreed. I've taken the liberty of removing the Merge template. --DryaUnda 10:54, 10 July 2006 (UTC)

Was eaten by seven.[edit]

The article begins with that sentence, is it a joke ? Star trek fans ? Please help. -- DLL .. T 20:14, 14 November 2006 (UTC)

"Why was six scared?"
"Because seven ate nine."
JIMp talk·cont 15:36, 3 February 2013 (UTC)


9 is cool! Kolanak 23:58, 17 April 2007 (UTC)

Agreed. My second favorite under 4 and above 13. It's a number that has an ego, but knows it's not the highest number.Flynn M Taggart (talk) 13:07, 24 August 2009 (UTC)

Handwriting differences[edit]

I've noticed a random transatlantic difference: Americans write their nines almost exactly like an upside-down (possibly reversed, I'm not sure where the stroke starts) <6>, wheras Britons write it like a flipped <b>. Surely the British version is better because it's less susceptible to confusion with <g> or <0>? —The preceding unsigned comment was added by (talk) 11:02, August 23, 2007 (UTC)

The etymology of number 9 on the article is false. It's origin is Assyrian. Please, rotate the 9th letter of the Assyrian (Syriac) letter and you'll see something interesting appearing.

Football shirt nonsense[edit]

Since *when* did Ronaldo make the no. 9 shirt famous in football - this suggests nobody associated the no.9 shirt the main striker before him - what a lot of tosh. —Preceding unsigned comment added by (talk) 19:59, 13 March 2008 (UTC)

God is Nine in ONE[edit]

In the Old Testament in the tabernacle of God, the Lord told Moses to make things that were a "copy and shadow of the heavenly things" (Hebrews 8:5; 9:23). One of those things Moses was instructed to make was a lampstand with seven lamps (Exodus 25:31-37; 37:17-23). This lampstand represented the Holy Spirit. If the seven Spirits are accepted, then it becomes apparent that there is the Father, the Son, and the Holy Spirit (who is seven Spirits). Adding this up equals 9, and that is the number of "Holy"s found in the Majority of Greek manuscripts in Revelation 4:8.


Organization of number pages and number disambiguation pages[edit]

Dear Colleagues,

There is an ongoing discussion on the organization of number pages and number disambiguation pages.

Your comments would be much appreciated!! Please see and participate in:

Thank you for your participation!


PolarYukon (talk) 15:07, 8 January 2010 (UTC)

Material inappropriately moved from here to 9 (disambiguation) removed[edit]

This material is no longer available in any current page on Wikipedia. I do not have any experties in number pages however I'm sure some material should be restored. See the discussion at Wikipedia_talk:WikiProject_Numbers#Organization_of_number_pages. these were the removing edits --MegaSloth (talk) 13:40, 12 January 2010 (UTC)

Obama section not relevant[edit]

It seems to me that the section "Use by the Obama administration" is not relevant to the article. Fishnet37222 (talk) 21:11, 17 March 2010 (UTC)

Gone, thanks. — Arthur Rubin (talk) 00:54, 18 March 2010 (UTC)

digtal root of 3 is wrong[edit]

is in my opinion 3,6,9 not 9 exclusively and there might be other numbers which have digital root 9 —Preceding unsigned comment added by (talk) 12:06, 1 August 2010 (UTC)

I have clarified [1] what I guess you are referring to. Was that it? PrimeHunter (talk) 13:14, 1 August 2010 (UTC)
yes, thats what I ment, the digital root of any number divisible by three can be 3, 6 or 9, but the former version of the article read as if all digital sum's of any number divisible by three had to be 9 excatly. Now I think it is correct, though a lot harder to read, due to the n=3 stuff. Which makes sense considereing other number systems as well. It just reads very mathematical now. (talk) 03:02, 2 August 2010 (UTC)

Dead link[edit]

During several automated bot runs the following external link was found to be unavailable. Please check if the link is in fact down and fix or remove it in that case!

    • In IC 1337 on 2011-04-23 17:08:25, Socket Error: 'getaddrinfo failed'
    • In IC 1337 on 2011-04-24 04:34:10, Socket Error: 'getaddrinfo failed'
    • In 10 (number) on 2011-05-23 02:06:58, Socket Error: 'getaddrinfo failed'
    • In 10 (number) on 2011-05-31 22:27:07, Socket Error: 'getaddrinfo failed'
    • In 11 (number) on 2011-06-01 02:53:15, Socket Error: 'getaddrinfo failed'
    • In 138 (number) on 2011-06-01 14:55:19, Socket Error: 'getaddrinfo failed'
    • In 48 (number) on 2011-06-19 14:01:14, Socket Error: 'getaddrinfo failed'
    • In 52 (number) on 2011-06-19 20:05:38, Socket Error: 'getaddrinfo failed'
    • In 7 (number) on 2011-06-19 21:10:44, Socket Error: 'getaddrinfo failed'

--JeffGBot (talk) 21:56, 19 June 2011 (UTC)

Dead link 2[edit]

During several automated bot runs the following external link was found to be unavailable. Please check if the link is in fact down and fix or remove it in that case!

--JeffGBot (talk) 21:56, 19 June 2011 (UTC)

Dead link 3[edit]

During several automated bot runs the following external link was found to be unavailable. Please check if the link is in fact down and fix or remove it in that case!

--JeffGBot (talk) 21:56, 19 June 2011 (UTC)

999: Nine Hours, Nine Persons, Nine Doors[edit]

No mention for 999 in the article about the number 9?! Wiki... I am disappoint. (talk) 16:06, 7 February 2012 (UTC)

I can see the point, but it (999: Nine Hours, Nine Persons, Nine Doors) probably should be in 999, rather than this article. See also the 9-9-9 plan, and probably other things with three 9s. — Arthur Rubin (talk) 23:22, 7 February 2012 (UTC)

backwards 9[edit]

Nine is often written "backwards" [i.e., with the bubble to the right of the vertical stroke] in Korea. Unfortunately, this is only a personal observation; I don't think any-one has published any-thing on this. Kdammers (talk) 14:08, 1 March 2012 (UTC)

Here is a very unreliable source: PrimeHunter (talk) 14:28, 1 March 2012 (UTC)
Thanks for the tip. Yes, it is unreliable and a number of the ideas are almost certainly wrong. Still, it is interesting. I hadn't found it using Google.Kdammers (talk) 06:11, 2 March 2012 (UTC)

0 or 9[edit]

I changed

In base 10 a number is divisible by nine if and only if its digital root is 0 or 9.


In base 10 a positive number is divisible by nine if and only if its digital root is 9.

I see no reason why my change is not an improvement. Both statements are correct, but

a digital root is only defined for non-negative numbers
The digital root of a number is 0 if and only if the number is 0.

Arthur Rubin (talk) 10:31, 6 July 2013 (UTC)

0 has a digital root of 0 and is divisible (or rather, a multiple) by 9. Sure, 0 is the only one with this distinction, but it doesn't mean it should be ignored in this sentence. I fail to see how my revision was faulty. Avengingbandit 15:08, 6 July 2013 (UTC)

Move discussion in progress[edit]

There is a move discussion in progress on Talk:1 (number) which affects this page. Please participate on that page and not in this talk page section. Thank you. —RMCD bot 04:43, 18 July 2013 (UTC)

Content order[edit]

This article is out of sync with other number articles ie doesn't follow the normal convention. I am new so cannot possibly sort it. Anyone else? Dlgw666 (talk) 21:46, 25 July 2015 (UTC)