Education Technology

Factors in their prime

Published on 10/03/2012

Activity Overview

Students use repeated division informed by knowledge of rules for finding factors such as: “even numbers are divisible by 2” and “numbers ending in a 5 or 0 are divisible by 5”. Students construct factor trees, search for factors and some more challenging problems relating to prime factorisation of a number.


Use simple divisibility rules to help identify prime and composite numbers;
Represent numbers as a product of their prime factors, with and without the use of index notation;
Construct a factor tree.


Factor, prime, composite, product

About the Lesson

The zip file includes all activity files and teacher related documentation. Open the Teacher document first to get an over view of this lesson bundle.