Factors and Prime Factor

Draw a number tree in your copy to find the prime factorization of 32.

Select which one is the correct answer.

• 2 x 2 x 2 x 3

• 2 x 2 x 2 x 2 x 2

What is the set of factors of 14?

• S={1, 14}

• S={1, 2, 7, 14}

• S={2, 7}

Is 8 a factor of 32? Yes or No

Which is not a factor of 21?

• 1

• 3

• 6

• 7

What is the prime factorization of 15?

• 3x3x3

• 2x2x5

• 15

• 3x5

Find the HCF of 30 and 36

• 2

• 3

• 4

• 6

which number below is NOT prime?

• 7

• 9

• 2

• 3

Find the prime factors 36.

• 2 x 2 x 2 x 3

• 2 x 2 x 2 x 3 x 3

• 2 x 2 x 3 x 3

What is the prime factors of 60?

• 2 x 15 x 2

• 2 x 5 x 6

• 2 x 2 x 3 x 5

• 3 x 2 x 10

Which of these number is a factor of 12?

• 24

• 5

• 6

• 8