Factoring: Greatest Common Factor

What does GCF mean?

• Great Cookie Fever

• Greatest Common Factor

• Greatest Common Multiple

• Greatest Compared Factor

What are the factors of 25?

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

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

GCF of 28 and 40

• 2
• 4
• 7
• 8

Find the greatest common factor of 32 and 48

• 2
• 8
• 16
• 18

What is the Greatest Common Factor of 35 and 42?

• 5

• 14

• 7

• 3

GCF 15 and 36

• 8

• 6

• 3

• 4

GCF of 8 and 20

• 8
• 2
• 4
• 10

What is the GCF of 8 and 10?

• 1
• 3
• 4
• 2

What is the GCF of 18 and 24?

• 3
• 6
• 8
• 9