# Spot the Prime Numbers

In this worksheet, students will revise and practise selecting the numbers that are prime.

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Use Concepts and Vocabulary for All Numbers

Popular topics:   Prime Numbers worksheets, Factors worksheets

Difficulty level:

#### Worksheet Overview

Prime numbers have two factors, 1 and the number itself.

All other whole numbers are known as composite.

The only even prime number is 2 because all other even numbers will have the number 2 as a factor.

The number 1 is not a prime number because it has only one factor - 1!

The list of prime numbers starts as follows:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37........

In this activity, we will be selecting the numbers in a list that are prime.

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