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Understand Prime Numbers

In this worksheet, students will be asked to find the difference between prime and composite numbers.

'Understand Prime Numbers' worksheet

Key stage:  KS 2

Year:  Year 5 Maths worksheets

Curriculum topic:   Number: Multiplication and Division

Curriculum subtopic:   Know Prime Numbers

Popular topics:   Numbers worksheets, Prime Numbers worksheets, Factors worksheets

Difficulty level:  

Worksheet Overview

In this activity, we will be asking different questions about prime numbers.

Let's recap what prime numbers are.


Prime Numbers

A prime number is a number greater than 1, that can only be divided by itself and 1.



11 is a prime number - it only has two factors, itself and 1.

11 ÷ 11 = 1

11 ÷ 1 = 11


Composite Numbers

Composite numbers are non-prime numbers.

Composite numbers are whole numbers. 

Composite numbers can be divided by numbers other than itself and 1. 

Composite numbers have more than two factors.

For example, 6 is a composite number because it has the factors: 1, 6, 2, 3.


girl thinking


Let's practise identifying different types of numbers in some questions.

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