STAAR Release Questions Prime and Composite

Prime or Composite

15

• Prime

  Exactly 2 factors - 1 & itself

• Composite

  3 or more facotrs

Prime or Composite

• Prime

  Exactly 2 factors - 1 & itself

• Composite

  3 or more facotrs

Prime or Composite

9

• Prime

  Exactly 2 factors - 1 & itself

• Composite

  3 or more facotrs

Prime or Composite

23

• Prime

  Exactly 2 factors - 1 & itself

• Composite

  3 or more facotrs

Which of the following numbers is a composite number?

• 2

• 3

• 5

• 9

29

• Prime

• Composite

The number 11 is​ (a)   because it has ​ (b)  

• prime

• composite

• exactly 2 factors

• more than 2 factors

True/False The number 1 is neither prime nor composite.

• True

• False

The number 17 is ​ (a)   because it has ​ (b)  

• prime

• composite

• exactly 1 factor pair

• more than 1 factor pair

Which of the following is NOT true?

• The number 5 is prime.

• The number 16 is a multiple of 2.

• The number 18 is a factor of 3.

• The number 8 is composite.