6th Prime Factorization

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What is a prime number?

• A number that can only be divided by 1 and itself.

• A number that has more than two factors.

• A number that is always even.

• A number that is always odd.

Which of the following is a prime number?

• 4

• 9

• 13

• 16

What is the prime factorization of 50?

• 2 x 25

• 5 x 10

• 2 x 5 x 5

• 50 x 1

What is the prime factorization of 120 using exponents?

• 2^3 × 3 × 5

• 2^2 × 3 × 5

• 2 × 3^2 × 5

• 2 × 3 × 5^2

What is the prime factorization of 280 using exponents?

• 2^2 × 5 × 7

• 2^3 × 5 × 7

• 2 × 5^2 × 7

• 2 × 5 × 7^2

What would you divide by to factor 135

What is the final prime factorization of 540?

• 2^3 x 3^2 x 5

• 2^2 x 3^2 x 5

• 2^2 x 3^3 x 5

• 2^2 x 3 x 5^2

• none of these

Why would you divide by 5 at this point?

What would you divide 27 by?