Least Common Multiple (LCM)

When listing the multiples of a number, you can think about...

• putting them in random order

• skip counting by the number

• repeating subtraction

Another way to think about multiples is...

• repeated subtraction

• repeated division

• repeated addition

The first six multiples of 7 are 1, 6, 7, 9, 36, 42

• True

• False

Alex listed the first four multiples of 7 as 7, 14, 22, 28

Which number in their list is incorrect?

• 7

• 14

• 22

• 28

Choose the correct list of the first five multiples of 10.

• 1, 10, 20, 30, 40
• 10, 20, 30, 40, 50
• 5, 10, 15, 20, 25
• 10, 30, 40, 50, 60

Choose the correct list of the first five multiples of 6. 

• 6, 14, 22, 28, 34
• 6, 12, 18, 24, 32
• 1, 6, 12, 18, 24

Which of these numbers is NOT a multiple of 4 ?

• 8

• 40

• 2

• 4

Tags

CCSS.4.OA.B.4

What are the first three common multiples for 3 and 4?

Use the chart in the image to help you.

• 1, 2, 3

• 6, 12, 18

• 12, 24, 36

• 8, 12, 16

LCM stands for ___________.

• Less Common Multiple

• List Common Multiple

• Lease Common Multiple

• Least Common Multiple

Find the least common multiple (LCM) of 6 and 12.

• 3

• 4

• 6

• 12