Factors and Multiples - BBC Math

Factors and multiples

You scored 8 out of 8

1. Look at the following list of numbers:

2, 36, 9, 8, 24

Which number is a factor of 12? 

You said: 2

Well done, 2 is a factor of 12. 

2. Look at the following list of numbers:

2, 36, 9, 8, 24

Which number is a multiple of 18? 

You said: 36

Well done, 18 divides into 36. 

3. Look at the following list of numbers:

2, 36, 9, 8, 24

Which number is a factor of 2 and a multiple of 2? 

You said: 2

Well done ,2 is a factor and a multiple of itself! 

4. Look at the following list of numbers:

2, 36, 9, 8, 24

Which number is a factor of 18, but not a multiple of 2? 

You said: 9

Well done, that's correct! 

5. Look at the following list of numbers:

2, 36, 9, 8, 24

Which number is the highest common factor of 24 and 40? 

You said: 8

Well done, 8 is the HCF of 24 and 40. 

6. Find the HCF of 32 and 40. 

You said: 8

Well done, 8 is the largest number that will divide into 32 and 40. 

7. Find the LCM of 32 and 40. 

You said: 160

Well done, 160 appears in the 32 times table, and also in the 40 times table! 

8. Find the HCF of 48 and 84. 

You said: 12

Well done, 12 is the largest number that will divide into 48 and 84.