Common Factors and Multiples

What is the GCF of 8 and 24?

• 1

• 24

• 8

• 4

Find the GCF and use the distributive property for 15 +5.

• 3 (5+5)

• 5 (3+5)

• 5 (3+1)

• 15 (1+5)

What does GCF mean?

• Great Cookie Fever

• Greatest Common Factor

• Greatest Common Multiple

• Greatest Compared Factor

How do you find the multiples of a number?

• Use division to find out what you multiply to make a multiple.

• Use my multiplication facts and write them out.

• Write down how many times that number appears in a multiplication table/chart.

What are the first 5 multiples of 16?

• 1, 2, 4, 8, 16

• 16, 32, 48, 64, 80

• 16, 22, 38, 44, 50

• 1, 2, 3, 4, 5

Adam is trying to find the greatest number of gift bags he can give to his friends. He wants the same amount of toy dinosaurs and stickers in each bag. If he has 30 toy dinosaurs and 20 stickers, what does he need to find? How many dinosaurs and stickers will be in each bag?

• Greatest Common Multiple; 3 dinosaurs and 2 stickers

• Greatest Common Factor; 3 dinosaurs and 2 stickers

• Greatest Common Factor; 6 dinosaurs and 4 stickers

• Least Common Multiple; 60 dinosaurs and 60 stickers

What is the greatest common factor of 24 and 36?

• 2

• 3

• 12

• 24

What is the LCM of 15 and 10?

• 15

• 25

• 30

• 20

What is the LCM of 6 and 24? 

• 3
• 6
• 12
• 24

Ap- What is the LCM of 2, 4, 6?

• 6
• 12
• 4
• 2