MCQ Questions for Class 6 Maths: Ch 3 Playing with Numbers

MCQ Questions for Class 7 Maths: Ch 3 Playing with Numbers

1. What are the numbers which have more than two factors called?
(a) Even numbers
(b) Prime numbers
(c) Composite numbers
(d) Odd numbers
► (c) Composite numbers

2.  If a number is divisible by 10, then which of the following can be its one’s digit?
(a) 2
(b) 3
(c) 4
(d) 0
► (d) 0

3. 901153 is divisible by ___.
(a) 3
(b) 5
(c) 11
(d) 7
► (c) 11

4. The sum of two odd and one even numbers is
(a) Even
(b) Prime
(c) Composite
(d) Odd
► (a) Even

5. Choose the maximum consecutive numbers less than 100 so that there is no prime number between them.
(a) 6
(b) 5
(c) 7
(d) 8
► (c) 7

6. If a number is divisible by 2 and 3 both then is divisible by
(a) 3
(b) 6
(c) 5
(d) 7
► (b) 6

7. Every ______ of a number is greater than or equal to that number.
(a) factor
(b) number
(c) multiple
(d) none to these
► (c) multiple

8. What are the numbers which are multiples of 2 called?
(a) Odd numbers
(b) Even numbers
(c) Prime numbers
(d) Composite numbers
► (b) Even numbers

9. The only prime number which is also even is
(a) 6
(b) 1
(c) 2
(d) 4
► (c) 2

10. What is the H.C.F. of two co-prime numbers?
(a) 1
(b) 0
(c) 2
(d) 4
► (a) 1

11. Every prime number except ______ is odd.
(a) 5
(b) 7
(c) 2
(d) 3
► (c) 2

12. Which of the following is the L.C.M. of 36 and 72?
(a) 36
(b) 72
(c) 108
(d) 2
► (b) 72

13. Which is the number that is neither prime nor composite?
(a) 0
(b) 1
(c) 2
(d) 5
► (b) 1

14. _____ is the factor of 68.
(a) 6
(b) 5
(c) 3
(d) 17
► (d) 17

15. Which of these numbers is a factor of every number?
(a) 0
(b) 1
(c) 2
(d) 4
► (b) 1

16. Which of the following is the prime factorisation of 140?
(a) 2 × 2 × 7
(b) 2 × 2 × 5
(c) 2 × 2 × 5 × 7
(d) 2 × 2 × 5 × 7 × 3
► (c) 2 × 2 × 5 × 7

17. Which of them is composite number?
(a) 6
(b) 5
(c) 7
(d) 3
► (a) 6

18. What is the H.C.F. of 120, 144 and 216?
(a) 38
(b) 24
(c) 120
(d) 144
► (b) 24

19. Find the HCF of 27, 63.
(a) 2
(b) 6
(c) 3
(d) 9
► (d) 9

20. Which of them is prime number?
(a) 3
(b) 6
(c) 9
(d) 8
► (a) 3

21. Number of factors of a given number are _______.
(a) finite
(b) infinite
(c) 3
(d) 2
► (a) finite

22. ______ is the smallest prime number which is even.
(a) 2
(b) 4
(c) 3
(d) 1
► (a) 2
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