GCF and LCM

Find the GCF of 12 and 6. 

• 1

• 6

• 2

• 3

Find the Greatest Common Factor (GCF) of 12 & 27

• 1

• 3

• 9

• 12

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

• 50

• 40

• 5

• 8

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

• 30

• 2

• 45

• 152

Mr. Roberts makes travels bags to take on a field trip. He puts 18 notepads, 36 water bottles, and 24 granola bars into bags. He wants to put the same amount in each travel bag. What is the greatest amount of travel bags he can make?

Answer as just a number.

_____ bags

• 4

• 18

• 6

• 24

• 12

Mr. Roberts makes travels bags to take on a field trip. He puts 18 notepads, 36 water bottles, and 24 granola bars into bags. He wants to put the same amount in each travel bag. What is the greatest amount of travel bags he can make?

Answer as just a number.

_____ bags

• 4

• 18

• 6

• 24

• 12

Match the following

• Greatest Common Factor

• Factors mean

• Least Common Multiple

• LCM stands for...

• fewer!

  (Example: 12: 1, 2, 3, 4, 6, 12)

• GCF stands for...

• more!

  (Example: 3: 3, 6, 9, 12, 15, 18)

• Multiples mean

What is the GCF of 24 and 40?

• 1

• 2

• 4

• 8

Find the GCF of 6 and 30

• 1

• 2

• 3

• 5

Find the LCM of 3 and 8

• 3

• 6

• 12

• 24