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?
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.
6)
You have been told that 143 = 11 × 13. Which of the following are true?