Free teaching resource

Factor Trees – Worksheet

Teach Starter Publishing
PDF, Word | 4 pages | Years: 5 - 7

A worksheet with factor trees that are used to find the prime factors of numbers.

Use this worksheet to consolidate your students’ understanding of factor trees.

Students will break the number at the top of each tree into two factors and continue to do so until all the number’s prime factors have been found.

Two versions of the worksheet are included along with corresponding answer pages.

An editable Microsoft Word version of the worksheet is also available via the drop-down menu.



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  • Emily Adcock

    Thanks for this. Could it please be saved as an editable document so changes can be made? This could be a really fun group activity.

    • Jill (Teach Starter)

      No problem Emily. Happy to hear you have been able to access the editable version. I hope your students enjoy it!

    • Emily Adcock

      Sorry, didn't read the blurb above re where to put changes. It is great - just printing it off to change and photocopy for my year fives. :)