Factors and Multiples

Find the Least Common Multiple (LCM) of 4 & 14.

• 14

• 20

• 28

• 42

List the first 5 multiples of 8

• 1, 2, 4, 8

• 8, 16, 25, 32, 40

• 8, 16, 24, 32, 40

• 8, 16, 24, 31, 40

What is the LCM of 4 and 6?

• 12

• 3

• 10

• 18

What is the GCF of 12 and 10?

• 2

• 5

• 12

• 4

All the factors of 15

• 1 and 15

• 1,3,5,15

• 1,2,4,15

• 2,15,30,45....

Tags

CCSS.4.OA.B.4

Multiples of 4

• 4

• 3

• 8

• 13

Find the greatest common factor of 20 and 30

• 2

• 5

• 10

• 15

What is the difference between GCF and LCM?

• one is for the multiples and the other is for factors

• they are spelled differently

What is the least common multiple of 5, 6, and 10?

• 10

• 13

• 21

• 30

Will you solve using GCF or LCM? Mrs. Crowley and Mrs. King are both taking their dog for a walk. They left at the same time. Mrs. Crowley and her dog make a lap every 6 minutes. Mrs. King makes a lap every 8 minutes. If they keep the same pace, in how long will both of them arrive at the same place at the same time?

• GCF

• LCM

• Neither

• Distributive Property