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?

20 10 15 5

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.

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

6)

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

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

Factors and Multiples

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Information: Factors and Multiples