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Prime Pickings (1)

In this worksheet, students revise and practise selecting the numbers that are prime.

'Prime Pickings (1)' worksheet

Key stage:  KS 2

Curriculum topic:  Maths and Numerical Reasoning

Curriculum subtopic:  Special Numbers

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

Prime numbers only have two factors, 1 and the number itself.

All other whole numbers are known as composite.

 

The only even prime number is 2.

 

The list of prime numbers starts as follows:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37........

Select all the numbers which are prime.

2

5

8

9

11

Select all the numbers which are prime.

2

7

13

15

17

Select all the numbers which are prime.

12

15

18

19

23

Select all the numbers which are prime.

17

19

21

23

25

Select all the numbers which are prime.

27

29

31

33

37

Select all the numbers which are prime.

37

39

41

43

45

Select all the numbers which are prime.

49

51

53

57

59

Select all the numbers which are prime.

60

61

67

69

71

Select all the numbers which are prime.

67

71

73

75

79

Select all the numbers which are prime.

37

73

35

53

91

  • Question 1

Select all the numbers which are prime.

CORRECT ANSWER
2
5
11
EDDIE SAYS
8 is not prime as it can be divided by 2 and 4 9 is not prime as it can be divided by 3
  • Question 2

Select all the numbers which are prime.

CORRECT ANSWER
2
7
13
17
EDDIE SAYS
15 is not prime as it can be divided by 3 and 5
  • Question 3

Select all the numbers which are prime.

CORRECT ANSWER
19
23
EDDIE SAYS
12 is not prime as it can be divided by 2,3,4 and 6 15 is not prime as it can be divided by 3 and 5 18 is not prime as it can be divided by 2,3 and 6
  • Question 4

Select all the numbers which are prime.

CORRECT ANSWER
17
19
23
EDDIE SAYS
21 is not prime as it can be divided by 3 and 7 25 is not prime as it can be divided by 5
  • Question 5

Select all the numbers which are prime.

CORRECT ANSWER
29
31
37
EDDIE SAYS
27 is not prime as it can be divided by 3 and 9 33 is not prime as it can be divided by 3 and 11
  • Question 6

Select all the numbers which are prime.

CORRECT ANSWER
37
41
43
EDDIE SAYS
39 is not prime as it can be divided by 3 and 13 45 is not prime as it can be divided by 3, 5, 9 and 15
  • Question 7

Select all the numbers which are prime.

CORRECT ANSWER
53
59
EDDIE SAYS
49 is not prime as it can be divided by 7 51 is not prime as it can be divided by 3 and 17 57 is not prime as it can be divided by 3 and 19
  • Question 8

Select all the numbers which are prime.

CORRECT ANSWER
61
67
71
EDDIE SAYS
60 is not prime as it can be divided by 2, 3, 5, 6, 10, 12, 20 and 30 69 is not prime as it can be divided by 3 and 23
  • Question 9

Select all the numbers which are prime.

CORRECT ANSWER
67
71
73
79
EDDIE SAYS
75 is not prime as it can be divided by 3,5,15 and 25
  • Question 10

Select all the numbers which are prime.

CORRECT ANSWER
37
73
53
EDDIE SAYS
35 is not prime as it can be divided by 5 and 7 91 is not prime as it can be divided by 7 and 13
---- OR ----

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