FACTORS AND MULTIPLES

Which are the factors of 28?

• 14

• 20

• 28

• 6

• 8

4 is a factor of 30. True or false?

• True

• False

Which of the following is the factor of 27

• 2

• 3

• 4

• 6

4 is the prime factors of 12. True or false?

• True

• False

7 is the prime factor of 28. True or false?

• True

• False

Prime factors of 18 are

• 1 and 2

• 2 and 3

• 2, 3 and 9

• 3 , 6 and 9

Prime factor of 45 is

• 1

• 5

• 9

• 15

Express 30 in the form of prime factorisation

• 30 = 2 x 3 x 5

• 30 = 2 x 15

• 30 = 3 x 10

• 30 = 1 x 30

Express 36 in the form of prime factorisation

• 36 = 4 x 9

• 36 = 2 x 2 x 3

• 36 = 2 x 2 x 9

• 36 = 2 x 2 x 3 x 3

Common factors of 9 and 15 are

• 1

• 3

• 9

• 15