Factors and Multiples

Below is an applet to help with identifying factors and multiples. There also follow a set of questions; you can use the applet to help you.

1)

How many numbers between 1 and 20 have 3 as a factor?

2)

Which number has 1 factor?

3)

Which of the following are multiples of 10?

10 20 5 15

4)

A number between 10 and 19 has an odd number of factors. Which number is it?

5)

Identify the relationship between factors and multiples.

There is no link between factors and multiples. They both involve addition and subtraction. They involve inverse operations. They are the same operation.

6)

You have been told that 143 = 11 × 13. Which of the following are true?

13 is a factor of 143. 286 has 11 and 13 as factors. 11 is a multiple of 143. 143 ÷ 13 = 11. 143 has a total of 2 factors.

Factors and Multiples

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Information: Factors and Multiples