Least Common Multiples Lesson

What is the least common multiple (LCM) of 3 and 20?

• 60
• 40
• 20
• 3

What is the least common multiple (LCM) of 8 and 5?

• 50
• 40
• 5
• 8

What is the least common multiple (LCM) of 15, 3 and 2?

• 30
• 2
• 45
• 152

What is the least common multiple (LCM) of 6, 8 and 12?

• 6
• 8
• 48
• 24

The multiples of 7 are
1,6,7,9,3,6,4

• True
• False

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

Which of these numbers is a multiple of 18?

• 2
• 6

• 35

• 54

What is the LCM of 2, 4, and 9?

• 18
• 36
• 27
• 40

What is the least common multiple of 4 and 10?

• 2

• 20

• 40

• 100

Sonic employees are handing out coupons. Every 10th customer gets a $1 coupon. Every 12th customer gets a $2 coupon.

Which customer is the first to receive both coupons?

• 20

• 30

• 60

• 120