Factors Gcf

Find the GCF of 12 and 18.

• 3

• 6

• 9

• 4

What are the factors of 48?

• 1,2,3,4,6,12, 48

• 1, 2, 4, 6, 8, 12, 24, 48

• 1, 2, 3, 4, 6, 8, 12, 48

• 1,2,3,4,6,8,12,16,24, & 48

Mary is organizing her marble collection into boxes. She has 18 red marbles and 24 yellow marbles. She wants every box to have the same number of each color of marbles. What is the greatest number of boxes Mary could use? How many red marbles would be in each box? How many yellow marbles would be in each box?

• 6 boxes: 3 red and 4 yellow

• 3 boxes: 6 red and 8 yellow

• 2 boxes: 9 red and 12 yellow

• 6 boxes, 4 red and 3 yellow

Write a number sentence, using Distributive Property & the Greatest Common Factor, between the two given numbers. 42 + 56

• 2(21 + 28)

• 14(3 + 4)

• 2(21) + 2(28)

• 7(6 + 8)

The Greatest Common Factor of 16 and 40 is ​ (a)  

• 8

• 4

• 5

• 2

• 16

• 32

• 3

• 11

What is the greatest common factor (GCF) of 18 and 30? (Just type the number)

Mathematical Equivalence

ON

Match the following GCF to the Expression

• 7

• 4x-2

• 9

• 8x-72

• 2

• 5x-5

• 5

• 9x+81

• 8

• 21x-28

GCF 24 and 36

• 8

• 6

• 12

• 4

Match the following GCF to the Expression

• 12

• 28x-49

• 3

• 6x-9

• 6

• 12x-24

• 4

• 4x-4

• 7

• 6x-18

What is the GCF of 6 and 12?

• 2

• 3

• 4

• 6