GCF and LCM Video

What is the greatest common factor of the following numbers: 18 and 81

• 3

• 2

• 9

• 18

What is the greatest common factor of the following numbers:

14, 42, and 49

• 3

• 7

• 2

• 84

What is the least common multiple of the following numbers:

• 24

• 3

• 18

• 36

What is the GCF of 48 and 36?

• 6

• 12

• 48

• 4

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

Which pair of numbers has a GCF of 10 AND a LCM of 60?

• 2 and 5

• 20 and 30

• 5 and 10

• 15 and 20

Tags

TEKS.MATH.6.7A

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

What is the GCF? 5x²+20x

• 5

• x

• 5x

• 20x

What is the LCM of 12 and 9?

• 3

• 108

• 12

• 36

What is the least common multiple (LCM) of 5 and 20?

• 4

• 5

• 20

• 100