Factors/Prime Factorization

Prime numbers _______________________________________

• are really cool.

• have exactly two factors; one and itself.

• have exactly one factor

• include all composite numbers.

Factor trees ________________________

• allow us to find all the factors of a number.

• are great for tire swings.

• help us find the prime factorization of a number.

• explain the difference between prime and composite numbers.

What is the prime factorization of 45?

• 5 X 9

• 3 X 3 X 3 X 5

• 3 X 3 X 5

• 2^3 X 5

What number is represented by the prime factorization of 2^2 x 3^2 x 5 ?

(Remember ^ means raised to the power of the next number)

• 100

• 200

• 120

• 180

Evaluate the expression : 100 - 16 x (7 - 2) + 10

• PEMDAS

• 10

• 30

• 450

Bonus Question:

What is the greatest perfect square that is a factor of 180?

• 9

• 25

• 36

• Hey, isn't that safe drivers save 40%?