Greatest Common Multiple & Least Common Multiple

List all the factors of 12

• 1, 2, 3, 4, 6, 12

• 1, 2, 4, 12

• 1, 12

• 1, 2, 3, 4, 5, 6, 12

What are the factors of 25?

• 1, 2, 3, 5, 10, 15, 25
• 1, 5,  25
• 1, 25
• 1, 5

Tags

CCSS.4.OA.B.4

What is the GCF of 8 and 10?

• 1
• 3
• 4
• 2

Find the greatest common factor of 20 and 30

• 2
• 5
• 10
• 15

Find the greatest common factor of 24 and 48

• 4
• 12
• 24
• 48

Find the greatest common factor of 30 and 36

• 2
• 3
• 6
• 18

Sara had 16 red flowers and 24 yellow flowers.  She wants to make bouquets with the same number of each color flower in each bouquet.  What is the greatest number of bouquets that she can make?

• 4
• 2
• 48
• 8

Ms. Waters was trying to find the GCF using the ladder method, but she made an error along the way! Identify the step where she went wrong. 

• Step 1
• Step 2
• Step 3
• Step 4

Which is a NOT a factor of 9?

• 0
• 1
• 3
• 9

Lisa is making activity baskets to donate to charity.  She has 12 coloring books and 36 crayons.  What is the greatest number of baskets she can make if each type of toy is equally distributed among the baskets?

• 2
• 12
• 36
• 6