Numbers CHARTS & TABLES
Numbers CHARTS & TABLES
Numbers (continued)
Natural numbers
The set of natural numbers includes any positive whole numbers beginning with the
number 1.
{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, ...}
Odd numbers
Any number not divisible exactly by 2.
Prime numbers
Any number divisible only by itself and 1.
2
3
5
7
11
13
17
19
23
29
etc.
Rational numbers
Any number, whether an integer or a fraction, which can be written as a fraction, as
long as zero is not the denominator.
Real number
Any number, whether rational or irrational, which can be written with a decimal and
is not an imaginary number.
Whole numbers
The set of whole numbers includes any number that is not a fraction, beginning with
zero.
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, ...}