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Count the Factors

In this worksheet, students will state how many factors a number has by looking at its 'factor spider'!

'Count the Factors' worksheet

Key stage:  KS 2

Year:  Year 5 Maths worksheets

Curriculum topic:   Number: Multiplication and Division

Curriculum subtopic:   Identify Multiples and Factors

Popular topics:   Factors worksheets

Difficulty level:  

Worksheet Overview

 In this activity, we are going to be looking at the factors of numbers.


The number 6 has four factors, shown in pairs on the legs of this factor spider.

The factor pairs of 6 are:

1 and 6

2 and 3

So, it has two factor pairs and four factors: 1, 2, 3 and 6


Factor spider 6


The number 12 has six factors, shown on the legs of this factor spider.


Factor spider 12


The factor pairs of 12 are:
1 and 12
2 and 6
3 and 4

So, there are three factor pairs and six factors: 1, 2, 3, 4, 6 and 12


Look at the factor spider for the number 9, which has three factors.

It has two factor pairs:

1 and 9

3 and 3


But only three factors: 1, 3 and 9

Note that the factor 3 should only be counted once.

Factor spider 9


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