Integer
Revision as of 14:38, 19 June 2006 by IntrepidMath (talk | contribs)
An integer number is one of the numbers obtained in counting (positive integers also known as natural numbers): , zero:
, or one of the negative integers:
. If
and
are integers, then so is their sum
, their difference
, and their product
, but their quotient
may or may not be an integer.
The class of integers is the simplest class of numbers and is used to construct other classes like rational numbers and real numbers.