Ten digit number: Difference between revisions
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First saw this as a puzzle from {{ | First saw this as a puzzle from {{car talk link}}, where it is attributed to [http://en.wikipedia.org/wiki/Martin_gardner Martin Gardner]. | ||
== Puzzle == | == Puzzle == | ||
Current revision as of 09:08, 8 June 2010
First saw this as a puzzle from Car Talk, where it is attributed to Martin Gardner.
Puzzle
Find what is unique about this number: 8,549,176,320.
Help
Hint
This is similar to the next letter puzzle
Answer
It is the only ten digit number which has all ten digits (0-9) in alphabetical order
References
- Car Talk Puzzler - sometimes automotive, sometimes more math/logic based.
- Books by Martin Gardner - perhaps the greatest contributer to mathematical puzzles ever.