# What Is A Whole Number?

The whole numbers are the numbers:

# Whole Numbers As Counting Numbers

Whole numbers can be used to count a whole number of objects or say whether there are no objects at all.

Note: Mathematicians usually call the numbers from 1 upwards (1, 2, 3...) counting numbers or natural numbers. If we include 0, this becomes the whole numbers.

# Whole Numbers on the Number Line

The image below shows the whole numbers on the number line.

Note: The whole numbers are not found in between the numbers shown.

# Natural Numbers, Whole Numbers and Integers

The difference between natural numbers, whole numbers and integers can be quite confusing.

Remember,
• Natural numbers start from 1: {1, 2, 3 ...}
• Whole numbers start from 0: {0, 1, 2, 3 ...}
• Integers have negative numbers: {-3, -2, -1, 0, 1, 2, 3 ...}

##### Interactive Test
show

Here's a second test on whole numbers.
Here's a third test on whole numbers.

# What Whole Numbers Are

Whole numbers are integers that aren't negative.

# What Natural Numbers Are Not

Natural numbers are not negative (such as -1) and are not fractions (part of a whole number, such as ½ or 0.3).

# The Whole Numbers Are the Natural Numbers Plus 0

The whole numbers are the set of natural numbers with 0 included.

If the natural numbers are:

1, 2, 3...

The whole numbers are:

0, 1, 2, 3...