Prime and Composite Review

Composite numbers:

• Are always bigger than prime numbers
• Have more than 2 factors
• Have 2 pairs of factors
• Don't have factors

Find the prime number.

• 10
• 9
• 7
• 4

Is 3 a factor of 12?

• yes
• no

is 5 prime or composite?

• prime
• composite

Besides 15 and 1, what is one factor of 15?

• 2
• 4
• 6
• 3

Which answer choice lists all the factors for 27?

• 3, 9
• 1, 3, 9, 27
• 1, 3, 6, 9, 12, 27
• 1, 3, 6, 9, 18, 27

Find the prime number

• 10
• 9
• 7
• 4

Which number is NOT a factor of 10?

• 1
• 2
• 3
• 5

Which number is NOT a factor of 18 ?

• 2
• 3
• 5
• 9

Which number listed below is a prime number?

• 1
• 37
• 63
• 33