Playing with Numbers, Chapter 3 Class 6 Maths MCQs

1. The exact divisor of number 9 is

(a) 2

(b) 3

(c) 4

(d) 5

Question 1 of 20

2. Which number is factor of every number

(a) 1

(b) 2

(c) 10

(d) 100

Question 2 of 20

3. Numbers of factors of given number are:

(a) 1

(b) 2

(c) finite

(d) infinite

Question 3 of 20

4. The numbers of multiples of given number are

(a) 1

(b) 2

(c) finite

(d) infinite

Question 4 of 20

5. Every number is multiple of

(a) 1

(b) 2

(c) 10

(d) itself

Question 5 of 20

6. A number for which sum of all its factors is equal to twice number is called

(a) Perfect number

(b) even number

(c) Odd number

(d) Prime number

Question 6 of 20

7. How many factors does 36 has

(a) 7

(b) 9

(c) 10

(d) 8

Question 7 of 20

8. Which of following number is multiple of 8

(a) 2

(b) 4

(c) 10

(d) 16

Question 8 of 20

9. The numbers having two factors are called

(a) Even

(b) Odd

(c) Prime

(d) Composite

Question 9 of 20

10. The numbers having more than two factors are called

(a) Prime numbers

(b) Composite numbers

(c) Even numbers

(d) Odd numbers

Question 10 of 20

11. Which is greatest 3-digit number exactly divisible by 8,10,12

(a) 120

(b) 360

(c) 960

(d) 980

Question 11 of 20

12. Divisibility by 2,5,10 can be checked by

(a) sum of digits

(b) last digit

(c) last two digits

(d) last three digits

Question 12 of 20

13. Find the least number which when divided by 6,15 and 18 leave remainder 5 in each case

(a) 90

(b) 180

(c) 95

(d)185

Question 13 of 20

14. L.C.M. of two co-prime numbers is always

(a) product of numbers

(b) sum of numbers

(c) difference of numbers

(d)none

Question 14 of 20

15. Find the L.C.M. of 12 and 18

(a) 6

(b) 36

(c) 12

(d) 18

Question 15 of 20

16. 4= 2×2 , 15= 3×5, so H.C.F. of 4 and 15 is

(a) 0

(b) 1

(c) 2

(d) 3

Question 16 of 20

17. What is the H.C.F. two consecutive odd numbers

(a) 1

(b) 2

(c) 4

(d) 8

Question 17 of 20

18. The sum of two consecutive odd number is always divisible by

(a) 2

(b) 4

(c) 6

(d)8

Question 18 of 20

19. The product of three consecutive numbers is always divisible by

(a) 2

(b) 4

(c) 6

(d) 8

Question 19 of 20

20. Which of the following numbers has 4 different prime factors

(a) 24

(b) 120

(c) 210

(d)100

Question 20 of 20