Difference between revisions of "Number"

Revision as of 22:59, June 21, 2007

A number is a term that describes the amount of something.

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-A '''number''' is a term that describes the amount of something. A number may be even (divisible by two) or odd (not divisible by two), positive (more than nothing) or negative (less than nothing), whole (undivided) or fractional (divided into smaller parts), and various other classifications, such as prime (only divisible by itself and one).
+A '''number''' is a term that describes the amount of something.
-Numbers are usually represented in [[English]] writing by a system of ''numerals'':
-*0 (zero)
-*1 (one)
-*2 (two)
-*3 (three)
-*4 (four)
-*5 (five)
-*6 (six)
-*7 (seven)
-*8 (eight)
-*9 (nine)
-Which can be used in combination to represent any number of any size. An older system of representation, still sometime encountered on clocks and other places, is [[Roman numeral]]s, which used certain letters of the [[alphabet]] instead.