6.7A Prime Factorization

Composite numbers:

• Are always bigger than prime numbers

• Have two pairs of factors

• Have more than two factors

• Don't have factors

What are all prime numbers divisible by?

• 1,2 and itself

• 1 and itself

• They aren't divisible at all

• Every number from 1-10

Which number listed below is a prime number?

• 1

• 33

• 37

• 67

Which of the following is not a multiple of 6?

• 72

• 18

• 42

• 35

True or False?

The number 1 is neither prime nor composite.

• True

• False

What are the factors of 24?

• 1,24

• 1,2,4,12

• 1,2,3,8

• 1, 2, 3, 4, 6, 8, 12, 24

How would you write the prime factorization of 24?

• 2³ x 3

• 2² x 4

• 2 x 2 x 3

• none of the above

The number 25 is

• Prime.

• Composite.

How would the prime factorization of 25 be written?

• 5 x 2

• 5²

Prime numbers

• Are numbers that have only two factors, 1 and themselves

• Have two pairs of factors

• Have more than two factors

• Don't have factors