2006-12-29 04:58:28 · 5 answers · asked by bluedragon9081 1 in Science & Mathematics ➔ Mathematics
The simplest numbers are the natural numbers, 1, 2, 3, .... The natural numbers are also called the whole numbers, positive integers, positive rational integers, or counting numbers. The natural numbers are closed with respect to addition and multiplication—that is, the sum and product of two natural numbers are always natural numbers. Because the quotient (the result of dividing) of two natural numbers, however, is not always a natural number, it is convenient to introduce the positive fractions to represent the quotient of any two natural numbers. The natural number n is identified with the fraction n/1. Furthermore, because the difference of two positive fractions is not always a positive fraction, it is useful to introduce the negative fractions (including the negative integers) and the number zero (0). The positive and negative integers and fractions, and the number 0, comprise the rational number system.
2006-12-29 05:12:36 · answer #1 · answered by tas 4 · 1⤊ 1⤋
Natural numbers are positive integers, essentially 1, 2, 3, 4, 5, 6...
There are several examples there, eh?
2006-12-29 14:16:44 · answer #2 · answered by TankAnswer 4 · 0⤊ 0⤋
The natural numbers are the counting numbers : 1,2,3 etc.
2006-12-29 13:56:46 · answer #3 · answered by davidosterberg1 6 · 0⤊ 0⤋
http://en.wikipedia.org/wiki/Natural_numbers
2006-12-29 13:01:55 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Read this
2006-12-29 13:01:27 · answer #5 · answered by Anonymous · 0⤊ 0⤋