Factors and multiples

Finding the Greatest Common Factor: What is the GCF of 24 and 36?

What is the GCF of

• 6

• 7

• 1

• Chicken

Stevie drew 24 animal pictures and took 16 selfies. She wants to put them in a scrap book so there are the same number of each kind of picture on each page. What is the greatest number of pages she can make for her scrapbook?

• 48

• 2

• 4

• 8

Greatest Common Factor of 15, 30, 40

• 10

• 5

• 15

• 3

Trevor has 18 math books and 16 science books. If he wants to distribute them evenly among some bookshelves so that each bookshelf has the same combination of math and science books, with no books left over, what is the greatest number of bookshelves Trevor can use?

• LCM

• GCF

• 2

• 108

Find the GCF of 30 and 45.

• 5

• 10

• 15

• 20

What is the greatest common factor of 27b³ and 16c²?

• b³c²

• bc

• 1

• b²c³

• 3

Find the Greatest Common Factor of 27&63

• 14

• 84

• 9

• 2

• 1

Using prime factorization to find GCF: Use prime factorization to find the greatest common factor of 48 and 60.

• 4

• 8

• 12

• 16

What is the GCF of 18 and 36? Show your work using the grid method.

• 3

• 9

• 18

• 36

• 54