Factors and Multiples Practice

The number 6 is a multiple of 3.

• True

• False

Find the Least Common Multiple (LCM) of 3 and 4

• 34

• 7

• 12

• 24

Which list of numbers contains only common multiples of 2 and 7?

• 14, 28, 35, 42

• 14, 28, 42, 70

• 7, 14, 28, 42

• 2, 4, 6, 8

What is the LCM of 6 and 10

• 6

• 10

• 60

• 30

What is the LCM of 32 and 40?

• 180

• 160

• 140

• 200

What is the LCM of 2, 4, 6?

• 6

• 12

• 4

• 2

John works every 4 days.  Chris works every 7 days.  How many days until they work together again?

• 28

• 11

• 3

• 35

Find the HCF of 12 and 16...

• 2

• 4

• 6

• 8

Find the HCF of 20 and 24

• 6

• 4

• 5

• 12

Find the HCF of 40 and 60?

• 10

• 20

• 30

• None of the above