Least Common Multiples

Find the Least Common Multiple of 9 and 6

• 18

• 36

• 38

• 72

Find the least common multiple for 4 and 7.

• 16

• 21

• 28

The __________ of two numbers is the smallest number that is a multiple of both numbers.

• greatest common factor

• least common multiple

• least common factor

• greatest common multiple

What is the least common multiple of 6 and 15 ?

• 30

• 60

• 21

• 90

If Juanita runs every third day and swims every fifth day, what is the first day that she will both run and swim again? 

• 5

• 15

• 45

• 30

While at school, Cooper has a math quiz every 6 days and a science quiz every 4 days. On Feb. 15, he had BOTH tests. Assuming no school days off or weekends, when will he have both tests on the same day again?

• February 27

• February 29

• March 2

• March 16

Find the Least Common Multiple of 3 and 12

(a)  

What is the least common multiple (LCM) of 4 and 10?

• 4

• 40

• 15

• 20

Find the Least Common Multiple of 9 and 4

(a)  

These are all multiples of 2 and 6 but which is the LEAST COMMON MULTIPLE?

• 6

• 12

• 18

• 24