Bitesize has changed! We're updating subjects as fast as we can. Visit our new site to find Bitesize guides and clips - and tell us what you think!

Did you know?

We also have Bitesize study guides covering many subjects at National 4 and National 5 on our Knowledge & Learning BETA website.

Home > Maths I > Relationships > Factors and multiples

Maths I

Factors and multiples



The factors of a number are any numbers that divide into it exactly. This includes 1 and the number itself.

For example, the factors of 6 are 1, 2, 3 and 6. The factors of 8 are 1, 2, 4 and 8.

For larger numbers it is sometimes easier to ‘pair’ the factors by writing them as multiplications.

For example, 24 = 1 \times 24 = 2 \times 12 = 3 \times 8 = 4 \times 6

So the factors of 24 are 1, 2, 3, 4, 6, 8, 12 and 24.


What are the factors of \;40?


The factors of \;40 are \;1, \;2, \;4, \;5, \;8, \;10, \;20 and \;40.

Make sure that you got all of them. Do not forget \;1 and \;40.


BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.