Today is September, 9, 2009 or 9/9/09

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SUMMARY

The forum discussion centers on the significance of the date September 9, 2009 (9/9/09) and its mathematical properties related to the number nine. Participants share various interesting facts about the number nine, including its status as the largest single-digit number, its unique properties in mathematics, and its cultural references, such as its connection to the Beatles' White Album. The conversation also touches on the excitement surrounding similar future dates like 10/10/10 and the playful nature of discussing numerical coincidences.

PREREQUISITES
  • Understanding of basic arithmetic and number properties.
  • Familiarity with cultural references related to numbers, such as the Beatles' White Album.
  • Knowledge of mathematical concepts like prime numbers and square integers.
  • Awareness of significant dates and their cultural implications.
NEXT STEPS
  • Explore the mathematical properties of numbers, focusing on prime and composite numbers.
  • Research the significance of numerology in different cultures.
  • Investigate the historical context of notable dates and their celebrations.
  • Learn about the mathematical concept of Kaprekar numbers and their properties.
USEFUL FOR

Anyone interested in mathematics, trivia enthusiasts, and individuals who enjoy exploring cultural significance in numerical coincidences will benefit from this discussion.

  • #31


not sure if you know this


9×1=09
9×2=18
9×3=27
9×4=36
9×5=45
9×6=54
9×7=63
9×8=72
9×9=81
9×10=90
 
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  • #32


[/color]9^2=81, 8+1=9[/color]

9^3=729, 7+2+9=18[/color]

9^4=6561, 6+5+6+1=18[/color]

9^5=59049, 27[/color]

9^6=531441, 18[/color]

9^7=4782969, 45[/color]

9^8=43046721, 27[/color]

9^9=387420489, 45[/color]

9+18+18+27+18+45+27+45=207, 207/9=23[/color]
 
Last edited:
  • #33


Chi Meson said:
No one else put this up yet?
1378672867_c047664900.jpg


Okay, that one makes me just want to give up!

41K8Dd7BRZL._SL500_AA280_.jpg
 
  • #34
http://en.wikipedia.org/wiki/9_(number)" .
 
Last edited by a moderator:
  • #35


BobG said:
We had our 999999 celebration at 9:09:09 this morning. We did make a compromise and celebrated at 9:09 local time instead of 9:09 Zulu.

Ivan Seeking said:
It was a very quick celebration.

Yes, it was. We spent more time eating nine-ingredient Chex mix, eating nine of each type of pastry, etc than we did celebrating with "Woohoo!".

On the other hand, we did get an early start planning our 10/10/10 10:10:10 celebration, a topic that got the computer geeks all excited about something called binary day.
 
  • #36


I was out on the trails this morning and I saw birds, butterflies, one frog in the pond, a deer, trees... but no nines.
 
  • #37


runner said:
I was out on the trails this morning and I saw birds, butterflies, one frog in the pond, a deer, trees... but no nines.

Are you sure the trail you were on was one of sincerity? The nines only appear on the most sincere trails. And are you sure you didn't accidentally show a lack of faith? The smallest slip of the tongue ("if" the nines appear vs "when" the nines appear) can doom you.

And are you sure today is the 9th? It can be very embarrassing to realize you've missed it completely, but it does occasionally happen. Don't feel bad. There's always ... uh ... well maybe you should feel bad.
 
  • #38


BobG said:
Okay, that one makes me just want to give up!

41K8Dd7BRZL._SL500_AA280_.jpg
Shouldn't that be "WhenEver!"?


It's a good thing that we don't have 11 toes. Well - at least most of us don't.
 
  • #39


Astronuc said:
Shouldn't that be "WhenEver!"?

Does it matter? Aren't time and space the same?
 
  • #40


Astronuc said:
Shouldn't that be "WhenEver!"?

Whatever!
 
  • #41


p-16
h-8
y-25
s-19
i-9
c-3
s-19

16+8+25+19+9+3+19=99
 
  • #42


J-10
r-18
e-5
e-5
l-12
a-1
w-23
g-7

10+18+5+5+12+1+23+7=81
 
  • #43


CompuChip said:
Does it matter? Aren't time and space the same?
Hmmm - then it must be WhenWherever or Whencewhen?
 

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