LCM and HCF

What is the LCM of 4 and 12? 

• 4
• 8
• 12
• 16

Find the HCF of 12 and 15 ?

• 2
• 2 x 3
• 3
• 60

Find the HCF of 8 and 24 ...

• 2

• 4

• 6

• 8

Find the HCF of 25 and 35

• 10
• 5
• 7
• 1

Find the missing multiple.

10: 10, 20, 30, 40, ___, 60, 70, 80

• 100

• 45

• 50

Which of the following shows the multiples of 12?

• 0, 12, 22, 53, 60

• 0, 4, 8, 12, 16, 24

• 0, 12, 24, 36, 48, 60

Which number is a multiple of 3?

• 27

• 28

• 29

Find the HCF of 20 and 24

• 6

• 4

• 5

• 12

Find the LCM of 8 and 24 ...

• 24

• 48

• 32

• 64

A prime number is...

• a number that has only one factor.
• a number that has at least two factors.
• a number that has more than two factors.
• a number that has only two factors.
  (1 and itself)