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Mathematics
4th -
5thgrade
Factors, Multiples and Prime Numbers
20 questions
Show Answers
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- 1. Multiple Choice
Which is a common multiple of 12 and 30?
6
60
- 2. Multiple Choice
4 is a common factor of 26 and 32.
True
False
- 3. Multiple Choice
42 is a common multiple of 7 and 21.
True
False
- 4. Multiple Choice
The factors of 63 are:
1, 3, 7, 9, 21, 63
1, 3, 7, 9, 31, 63
- 5. Multiple Choice
What are the prime numbers between 20 and 30?
23, 29
21, 23, 29
21, 23, 27, 29
21, 23, 25, 29
- 6. Multiple Choice
True or False
The number 7 is prime.
True
False
- 7. Multiple Choice
True or False
The number 8 has four factors.
True
False
- 8. Multiple Choice
True or False
The number 3 is a factor of 24.
True
False
- 9. Multiple ChoiceA prime number is...a number that has only one factor.a number that has at least two factors.a number that has more than two factors.a number that has only two factors.
(1 and itself) - 10. Multiple Choice
Tick the prime numbers
2
6
3
7
11
- 11. Multiple Choice
The LCM (lowest common multiple) of 5 and 2 is
8
5
6
10
- 12. Multiple Choice
The HCF (highest common factor) of 10 and 12 is
5
2
- 13. Multiple ChoiceWhich of these numbers is not prime?17252337
- 14. Multiple Choice
If you were stacking blocks to represent 4 x 4 = 16, what shape would you make with the blocks?
A circle
A square
A rectangle
A triangle
- 15. Multiple Choice
If you were stacking blocks to represent 2 x 7 = 14, what shape would you make with the blocks?
A circle
A square
A rectangle
A triangle
- 16. Multiple Choice
pick the prime number from the given list.
3
4
6
9
- 17. Multiple Choice
Choose one prime number.
1
2
4
6
- 18. Multiple Choice
Choose a prime number from the list.
7
8
9
10
- 19. Multiple Choice
Which is not a factor of 24?
2
3
4
5
- 20. Multiple Choice
What is the product of 4 and 6?
46
24
48
- Answer choicesTagsAnswer choicesTags