LCM and Multiples Quiz

Which of the following is the least common multiple (LCM) of 4 and 6?

• 12

• 24

• 18

• 8

If the LCM of two numbers is 30 and one of the numbers is 5, what could the other number be?

• 6

• 10

• 15

• 25

What is the LCM of 3, 5, and 7?

• 15

• 21

• 105

• 35

Which pair of numbers has an LCM of 20?

• 4 and 5

• 2 and 10

• 5 and 10

• 1 and 20

If you list the first five multiples of 8, which number will NOT be included?

• 16

• 24

• 32

• 36

Which of the following statements is true about multiples?

• A multiple of a number can never be less than the number itself.

• All multiples of an even number are odd.

• The first multiple of any number is always that number.

• Multiples can only be whole numbers.

What is the smallest multiple of both 9 and 12?

• 36

• 18

• 27

• 72

If you know the LCM of two numbers is 42, which of the following pairs could these numbers be?

• 6 and 7

• 14 and 21

• 3 and 14

• All of the above

Which number is a multiple of both 4 and 10?

• 20

• 30

• 15

• 25

What is the least common multiple (LCM) of 8 and 12?

• 24

• 48

• 32

• 16