Year 10
Foundation

Year 10
Foundation

# Identify Prime Numbers

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## Lesson details

### Key learning points

1. In this lesson, we will recap identifying prime numbers. We will define prime numbers and explain their properties.

### Licence

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## Video

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## Worksheet

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## Starter quiz

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### 4 Questions

Q1.
What is the 6th multiple of 15?
15
45
6
Q2.
Which are the factors of 28?
Correct answer: 1, 2, 4, 7, 14 and 28
1, 4 and 7
14 and 2
4 and 7
Q3.
Which numbers are missing from the Venn diagram?
1, 2 , 4 and 8
2 and 0
80 and 160
Q4.
A number less than 20 is missing from the Venn diagram. What is the missing number?
16
18
20

## Exit quiz

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### 5 Questions

Q1.
True or False, three of these numbers are prime and more than 20.
True
Q2.
Which number lies in the intersection (middle) of this Venn diagram?
10
2 and 2
6
Q3.
How many of the factors of 39 are prime numbers?
1
3
4
Q4.
Which two prime numbers sum to 40?