Types Of Numbers

Defining the different types of numbers.

• Education: Middle School

Matt Anderson's Take

Whole Numbers

A whole number is one that is 0 or above, has no fractions or decimals, and cannot be negative. Examples include 0, 1, 2, 3, 4, 5, 10, 500.

Natural Numbers

A nature number is any whole number starting from 1 and up. Examples include 1, 2, 3, 4, 5, 10, 500.


An integer is any whole number but can be positive or negative. Examples include -500, -10, -3, -1, 0, 1, 3, 10, 500.

Rational Numbers

A rational number is any number that can be written as a simple fraction. This includes all whole numbers, natural numbers, and integers. A number like 8 is a rational number because it can be written as 81. Confused? It's easier to know what isn't a rational number, which are called irrational numbers, and are explained below.

Irrational Numbers

An irrational number is one that cannot be written as a simple fraction or ratio between two numbers. Simply put, these are numbers where the decimal repeats forever. Examples include √2 (square root of 2) and ℼ (pi) which starts as 3.14159265359... and then keeps going forever. Another example would be 103 which is 10 divided by 3 and results in 3.3333333333... and repeats forever.

Real Numbers

A real number is any number that can be found on the number line. This includes all of the above number types listed.
Share This On
Matt Anderson
Added by on
More Top Rated All Islands Places