math 5 quarter 2

Think about the factors of 5. What is special about those factors?

• They are all even numbers.

• There are only 3 factors for the number 5.

• There are only 2 factors for the number 5.

• There are no factors for the number 5.

Which of the following pairs of numbers have 3 as a common factor? Choose 2 pairs!

• 18 & 24

• 21 & 25

• 51 & 63

• 49 & 52

Find the factors of 45 and 48. What is the GCF (greatest common factor)?

• 1

• 3

• 5

• 8

What are the common factors of 9 and 36?

Check all that apply.

• 1

• 3

• 4

• 9

• 36

What are all the common factors of 8 and 12?

Check all the common factors.

• 1

• 2

• 3

• 4

• 12

What does GCF stand for?

• Good Cold Flu
• Gaussian Coefficient Formula
• Given Clear Function
• Greatest Common Factor

What is the GCF of 8 and 16?

• 2

• 4

• 8

• 16

TRUE or FALSE:
The only factors of 9 are 1 and 9 making the number 9 prime.

• True
• False

Which set of numbers shows ALL the factors of 24?

• 2, 3, 4, 6, 8, 12, 24
• 2, 3, 4, 6, 8, 12, 24, 36
• 1, 2, 3, 4, 6, 8, 12, 24
• 1, 2, 4, 5, 7, 8, 12 ,24

Which set of numbers shows ALL the factors of 15?

• 7, 8
• 1, 15
• 1, 3, 5, 15
• 3, 5, 15