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STAAR Review - Prime & Composite

Last updated about 1 year ago

16 questions

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Question 1

1.

A composite number is a number with more than _______ factors.

Question 2

2.

A prime number is a number with exactly _______ factors.

Question 3

3.

Question 4

4.

Question 5

5.

Question 6

6.

Question 7

7.

Question 8

8.

Question 9

9.

Question 10

10.

Question 11

11.

Question 12

12.

Question 13

13.

Factors are numbers that are __________ together.

Question 14

14.

Question 15

15.

Question 16

16.

Which of the following is NOT a prime number?

37

61

47

51

Which best describes a prime number?

A number that cannot be grouped in twos.

A number than can be divided by 2 with 0 remaining

A number with more than two factors

A number with exactly two factors

Which best describes a composite number?

A number that cannot be grouped in twos

A number that can be divided by 2 with 0 remaining

A number with more than two factors

A number with exactly two factors

What number is neither prime nor composite?

1

2

3

4

Which of the following is a prime number?

18

54

35

47

Which number is even?

15

48

73

21

Which number is odd?

92

44

76

81

Which best describes an odd number?

A number that represents part of a whole.

A Number that can be divided by 2 with 0 remaining

A number based on groupings of 10.

A number that cannot be grouped in twos

Identify the numbers that are odd.

Prime numbers are all odd.

True

False

Drag each number to either prime or composite.

43

23

51

27

33

19

Prime

Composite

Drag each number to either prime or composite.

9

11

4

2

17

28

63

Prime

Composite

Select all the composite numbers from the list below.  Use your divisibility rules.

7, 21, 37, 44, 51, 63, 81, 82