STAAR Release Questions Prime and Composite

Is the number 1 considered a prime number?

• Yes

• No

The human hand has 27 bones. This number is a...

• prime number.

• composite number.

Sort the numbers

*Hint: use your prime numbers chart!

• 0

• Prime Number

• 24

• Neither Prime nor Composite

• 19

• Composite Number

Prime or Composite

7

• Prime

  Exactly 2 factors - 1 & itself

• Composite

  3 or more facotrs

Prime or Composite

51

• Prime

  Exactly 2 factors - 1 & itself

• Composite

  3 or more facotrs

Prime or Composite

77

• Prime

  Exactly 2 factors - 1 & itself

• Composite

  3 or more facotrs

Prime or Composite

72

• Prime

  Exactly 2 factors - 1 & itself

• Composite

  3 or more facotrs

Prime or Composite

81

• Prime

  Exactly 2 factors - 1 & itself

• Composite

  3 or more facotrs

Prime or Composite

39

• Prime

  Exactly 2 factors - 1 & itself

• Composite

  3 or more facotrs

Prime or Composite

18

• Prime

  Exactly 2 factors - 1 & itself

• Composite

  3 or more facotrs