Factors and Prime Factorisation

Use a number tree to find the prime factorization of 32

• 2 x 2 x 2 x 3

• 2 x 2 x 2 x 2 x 2

Which are the factors of 14?

• (1,14)

• (1, 2, 7, 14)

• (2, 7)

is 5 prime or composite?

• prime

• composite

What are the factors of 15?

• 1, 2, 3, 5, 15

• 1, 3, 5, 15

• 1, 2, 3, 4, 5

• 1, 5, 10, 15

which number below is NOT prime?

• 7

• 9

• 2

• 3

Is 12 prime or composite?

• prime

• composite

If the expanded form is 2⋅2⋅2⋅3⋅3⋅5⋅7 what would the exponential form be?

• 2⋅3⋅5⋅7

• 2³⋅3²⋅5⋅7

• 2²⋅3²⋅5⋅7

• 8⋅9⋅35

Find the prime factorization of 100 in exponential form.

• 10 × 10

• 5⁴

• 4 x 25

• 2² × 5²

The following prime factorization represents which number:  2² x 3 x 7

• 14

• 84

• 42

• 70

What is the prime factorization of 24 written in exponential notation?

• 2³ x 3

• 2² x 3 x 4

• 2² x 3

• 3 x 8