Here we are providing **Class 6 Math Important Objective** Chapter – 3 Playing with Numbers because its very important for Class 6 students as we all know that every board exam question has MCQs so that students should practice these questions so that students can get good marks in board. Class 6 Math Important Objective Chapter – 3 Playing with Numbers is an extremely important and its also a year in which students learn the fundamentals of concepts that help them lay a solid foundation for their higher education. Here we are providing in Class 6 Math Important Objective Chapter – 3 Playing with Numbers 80+ questions so that students practice more and more. If you want class wise Notes Then **Click Here**

## Class 6 Math Important Objective Chapter – 3 Playing with Numbers

1. Which of the following statements is false?

(a) All even numbers are composite numbers.

(b) If an even number is divided by 2, the quotient may be odd or even.

(c) The sum of two odd numbers and one even number is even.

(d) Sum of two prime numbers is not always even.

**Ans-(a) **

2. Which of the following numbers is not a factor of 68?

(a) 2

(b) 4

(c) 17

(d) 6.

**Ans-(d) **

3. 128 is divisible by

(a) 2

(b) 3

(c) 5

(d) 10.

**Ans-(a) **

4. What are the numbers which have more than two factors called?

(a) Even numbers

(b) Prime numbers

(c) Composite numbers

(d) Odd numbers

**Ans-(c) **

5. 275 is divisible by

(a) 5

(b) 3

(c) 6

(d) 8.

**Ans-(a) **

6. Which of tfie following numbers is not a factor of 36?

(a) 2

(b) 4

(c) 18

(d) 8.

**Ans-(d) **

7. 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

**Ans-(d) **

8. 116 is divisible by

(a) 2

(b) 3

(c) 6

(d) 8.

**Ans-(a) **

9. The value of 10 + 40 ÷ 8 × 2 – 9 is:

(a) 9

(b) 10

(c) 11

(d) 12

**Ans-(c) **

10. Which of the following numbers is not a factor of 24?

(a) 2

(b) 3

(c) 4

(d) 5.

**Ans-(d) **

11. 200 is divisible by

(a) 8

(b) 3

(c) 6

(d) 11.

**Ans-(a) **

12. 901153 is divisible by ___.

(a) 3

(b) 5

(c) 11

(d) 7

**Ans-(c) **

13. 1331 is divisible by

(a) 11

(b) 2

(c) 3

(d) 5.

**Ans-(a) **

14. Which of the following numbers is not a factor of 15?

(a) 1

(b) 3

(c) 4

(d) 5.

**Ans-(c) **

15. 1000 is divisible by

(a) 10

(b) 6

(c) 3

(d) 11.

**Ans-(a) **

16. The number which is divisible by 5 is:

(a) 422

(b) 423

(c) 424

(d) 425

**Ans-(d) **

17. The sum of two odd and one even numbers is

(a) Even

(b) Prime

(c) Composite

(d) Odd

**Ans-(a) **

18. Which of the following number is not a factor of 21?

(a) 1

(b) 3

(c) 6

(d) 7.

**Ans-(c) **

19. The greatest common factor of 8 and 20 is

(a) 2

(b) 1

(c) 4

(d) 8.

**Ans-(c) **

20. 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

**Ans-(c) **

21. Which of the following number is not a multiple of 27?

(a) 1

(b) 3

(c) 9

(d) 6

**Ans-(d) **

22. The common factor of 9 and 15 is

(a) 3

(b) 6

(c) 9

(d) 15.

**Ans-(a) **

23. If a number is divisible by 2 and 3 both then is divisible by

(a) 3

(b) 6

(c) 5

(d) 7

**Ans-(b) **

24. Which of the following numbers is not a factor of 12?

(a) 4

(b) 2

(c) 3

(d) 8.

**Ans-(d) **

25. Which of the following numbers is a prime number?

(a) 10

(b) 11

(c) 12

(d) 15

**Ans-(b) **

26. Every ______ of a number is greater than or equal to that number.

(a) factor

(b) number

(c) multiple

(d) none to these

**Ans-(c) **

27. The only even number which is not a composite number is:

(a) 2

(b) 4

(c) 6

(d) 8

**Ans-(a) **

28. The LCM of 12 and 16 is:

(a) 32

(b) 60

(c) 48

(d) none of these

**Ans-(c) **

29. The common factor of 3, 4 and 9 is

(a) 1

(b) 3

(c) 4

(d) 2.

**Ans-(a) **

30. Which of the following numbers is not a factor of 20?

(a) 2

(b) 4

(c) 5

(d) 6.

**Ans-(d) **

31. The smallest common factor of 4, 12 and 16 is

(a) 1

(b) 2

(c) 4

(d) 8.

**Ans-(a) **

32. Which of these is the factor of 50.

(a) 10

(b) 3

(c) 7

(d) 6

**Ans-(a) **

33. The HCF of 8 and 12 is

(a) 1

(b) 2

(c) 3

(d) 4.

**Ans-(d) **

34. What are the numbers which are multiples of 2 called?

(a) Odd numbers

(b) Even numbers

(c) Prime numbers

(d) Composite numbers

**Ans-(b) **

35. The HCF of 24 and 36 is

(a) 3

(b) 6

(c) 12

(d) 24.

**Ans-(c) **

36. Which of the following number is not a factor of 18?

(a) 2

(b) 3

(c) 6

(d) 8.

**Ans-(d) **

37.The LCM of 5 and 6 is

(a) 10

(b) 20

(c) 30

(d) 60.

**Ans-(c) **

38. The only prime number which is also even is

(a) 6

(b) 1

(c) 2

(d) 4

**Ans-(c) **

39. Which of the following number is not a multiple of 6?

(a) 12

(b) 21

(c) 24

(d) 36.

**Ans-(b) **

40. What is the sixth multiple of 13?

(a) 78

(b) 65

(c) 52

(d) 91

**Ans-(a) **

41. A prime number is a number which:

(a) is divisible by 2

(b) is not divisible by 2

(c) has no factors

(d) has exactly two factors

**Ans-(d) **

42. Which of them is a prime number?

(a) 13

(b) 14

(c) 28

(d) 25

**Ans-(a) **

43. What is the H.C.F. of two co-prime numbers?

(a) 1

(b) 0

(c) 2

(d) 4

**Ans-(a) **

44. Which of the following number is not a multiple of 5?

(a) 15

(b) 20

(c) 30

(d) 33.

**Ans-(d) **

45. Which of them is a composite number?

(a) 45

(b) 11

(c) 31

(d) 13

**Ans-(a) **

46. Every prime number except ______ is odd.

(a) 5

(b) 7

(c) 2

(d) 3

**Ans-(c) **

47. The number of multiples of a given number is

(a) 10

(b) 100

(c) 1000

(d) infinite

**Ans-(d) **

48. The LCM of 12, 15, 45 is:

(a) 170

(b) 180

(c) 190

(d) 200

**Ans-(b) **

49. Which of the following number is not a multiple of 9?

(a) 18

(b) 36

(c) 81

(d) 75

**Ans-(d) **

50. Which of the following is the L.C.M. of 36 and 72?

(a) 36

(b) 72

(c) 108

(d) 2

**Ans-(b) **

51. Which of the following statements is true?

(a) The product of two even numbers is always even.

(b) The sum of three odd numbers is even.

(c) All prime numbers are odd.

(d) Prime numbers do not have any factors.

**Ans-(a) **

52. The smallest prime number is

(a) 1

(b) 2

(c) 3

(d) 4.

**Ans-(b) **

53. The common factors of 24 and 40 are:

(a) 1, 3, 4, 8

(b) 1, 2, 4, 8

(c) 1, 4, 5, 9

(d) none of these

**Ans-(b) **

54. Which is the number that is neither prime nor composite?

(a) 0

(b) 1

(c) 2

(d) 5

**Ans-(b) **

55. The smallest composite number is

(a) 1

(b) 2

(c) 3

(d) 4.

**Ans-(d) **

56. _____ is the factor of 68.

(a) 6

(b) 5

(c) 3

(d) 17

**Ans-(d) **

57. The prime number which is even, is

(a) 2

(b) 3,

(c) 5

(d) 13.

**Ans-(a) **

58. Which of these numbers is a factor of every number?

(a) 0

(b) 1

(c) 2

(d) 4

**Ans-(b) **

59. 1 is

(a) a prime number

(b) a composite number

(c) neither prime nor composite

(d) an even number.

**Ans-(c) **

60. 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

**Ans-(c) **

61. The smallest odd number is

(a) 1

(b) 2

(c) 3

(d) 4.

**Ans-(a) **

62. Which of them is composite number?

(a) 6

(b) 5

(c) 7

(d) 3

**Ans-(a) **

63. The smallest even number is

(a) 1

(b) 2

(c) 3

(d) 4.

**Ans-(b) **

64. What is the H.C.F. of 120, 144 and 216?

(a) 38

(b) 24

(c) 120

(d) 144

**Ans-(b) **

65. The least prime number between 1 and 10 is

(a) 2

(b) 5

(c) 3

(d) 7.

**Ans-(a) **

66. Find the HCF of 27, 63.

(a) 2

(b) 6

(c) 3

(d) 9

**Ans-(d) **

67. The greatest prime number between 1 and 10 is

(a) 7

(b) 5

(c) 3

(d) 2.

**Ans-(a) **

68. Which of them is prime number?

(a) 3

(b) 6

(c) 9

(d) 8

**Ans-(a) **

69. Which of the following numbers is prime?

(a) 21

(b) 12

(c) 17

(d) 39.

**Ans-(c) **

70. Number of factors of a given number are _______.

(a) finite

(b) infinite

(c) 3

(d) 2

**Ans-(a) **

71. The value of 18 – 3 × 4 + 1 is:

(a) 61

(b) 75

(c) 7

(d) none of these

**Ans-(c) **

72. Which of the following numbers is composite?

(a) 19

(b) 23

(c) 6

(d) 29.

**Ans-(c) **

73. Prime factors of 45 are:

(a) 5, 9

(b) 3, 15

(c) 3, 3, 5

(d) none of these

**Ans-(c) **

74. ______ is the smallest prime number which is even.

(a) 2

(b) 4

(c) 3

(d) 1

**Ans-(a) **