This quiz works best with JavaScript enabled. Home > Cbse > Class 6 > Mathematics > Playing With Numbers > Class 6 Maths Chapter 3 Playing With Numbers – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Maths Chapter 3 Playing With Numbers Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which number is a multiple of 5? A) 54. B) 30. C) 53. D) 154. Show Answer Correct Answer: B) 30. 2. A number is divisible by 9 if the sum of the digits is divisible by ..... A) 9. B) 3. C) 18. D) None of the above. Show Answer Correct Answer: A) 9. 3. A number is divisible by 5 & 6, It may not be divisible by- A) 10. B) 15. C) 30. D) 60. Show Answer Correct Answer: D) 60. 4. Which of the following number is divisible by 3 but not by 9? A) 270. B) 450. C) 810. D) 330. Show Answer Correct Answer: D) 330. 5. What is a common factor of 16 and 24? A) 4. B) 9. C) 7. D) 3. Show Answer Correct Answer: A) 4. 6. The HCF 180, 120 and 240 is A) 23. B) 60. C) 65. D) 70. Show Answer Correct Answer: B) 60. 7. A number has 15 as a factor. Can you give two other factors of that number? A) 5, 7. B) 2, 3. C) 3, 5. D) 7, 3. Show Answer Correct Answer: C) 3, 5. 8. Every number is a multiple of itself. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. Which number is NOT prime? A) 7. B) 3. C) 21. D) 17. Show Answer Correct Answer: C) 21. 10. Which of the following numbers is divisible by 2? A) 63. B) 57. C) 35. D) 42. Show Answer Correct Answer: D) 42. 11. Short form of Divide, Multiplication, Addition and Subtraction A) Etc. B) DMA. C) Masd. D) Asmd. Show Answer Correct Answer: B) DMA. 12. ..... is neither prime nor composite A) 1. B) 2. C) 0. D) 5. Show Answer Correct Answer: A) 1. 13. The HCF of two co-prime numbers is A) 1. B) 2. C) 2. D) 0. Show Answer Correct Answer: A) 1. 14. Which of the following numbers is a prime number? A) 19. B) 14. C) 22. D) 9. Show Answer Correct Answer: A) 19. 15. Whole numbers are a set of numbers that includes all ..... numbers and zero. A) Whole. B) Natural. C) Integer. D) All. Show Answer Correct Answer: B) Natural. 16. The HCF of two consecutive odd numbers is ..... A) 2. B) 0. C) 1. D) 3. Show Answer Correct Answer: C) 1. 17. What is a prime triplet? A) 3 primes in a row. B) 4 primes in a row. C) 3 alternate prime numbers. D) 4 alternate prime numbers. Show Answer Correct Answer: C) 3 alternate prime numbers. 18. The HCF of 70, 105, 175 is A) 28. B) 12. C) 35. D) 44. Show Answer Correct Answer: C) 35. 19. The common factors of 60 and 75 are ..... A) 1, 3, 5, 10. B) 1, 3, 5, 15. C) 1, 3. D) 1, 3, 5. Show Answer Correct Answer: B) 1, 3, 5, 15. 20. The usual form of the number 5 x 100 + 6 x 1 is ..... A) 11. B) 56. C) 506. D) 5006. Show Answer Correct Answer: C) 506. 21. Insert the correct digit to make the following number divisible by 3.60 ..... 2 A) 1. B) 5. C) 2. D) 3. Show Answer Correct Answer: A) 1. 22. Which of the following are not twin primes? A) 3, 5. B) 5, 7. C) 17, 23. D) 11', 13. Show Answer Correct Answer: C) 17, 23. 23. Which number is a factor of 48? A) 7. B) 18. C) 9. D) 6. Show Answer Correct Answer: D) 6. 24. The number of distinct prime factors of smallest 5-digit number is- A) 3. B) 5. C) 4. D) 2. Show Answer Correct Answer: D) 2. 25. The HCF of two consecutive numbers is always A) 1. B) 2. C) 0. D) None of the above. Show Answer Correct Answer: A) 1. 26. What is the full form of HCF A) Highest factor common. B) Highest common multiple. C) Highest common factor. D) None of these. Show Answer Correct Answer: C) Highest common factor. 27. The sum of an even number and an odd number is ..... A) Even number. B) Odd number. C) All the above. D) None of the above. Show Answer Correct Answer: B) Odd number. 28. 3 and 5 are ..... of 15. A) Multiples. B) Factors. C) Both. D) None of the above. Show Answer Correct Answer: B) Factors. 29. Insert, commas suitably according to Indian system of numeration in 98432701. A) 98, 4327, 01. B) 9, 84, 32, 701. C) 984, 327, 01. D) 98, 432.701. Show Answer Correct Answer: B) 9, 84, 32, 701. 30. WHICH OF THE FOLLOWING IS THE FACTOR PAIR OF 84? A) 2 AND 21. B) 6 AND 14. C) 3 AND 36. D) 9 AND 7. Show Answer Correct Answer: B) 6 AND 14. 31. Which number is a multiple of 8? A) 2. B) 4. C) 24. D) 30. Show Answer Correct Answer: C) 24. 32. By what numbers is 6123 divisible?(Select appropriate answers) A) 5. B) 11. C) 2. D) 3. Show Answer Correct Answer: D) 3. 33. The number that has only 1 and number itself as factors is known as ..... number. A) Prime. B) Odd. C) Composite. D) None of the above. Show Answer Correct Answer: A) Prime. 34. The two numbers which have only 1 as their common factor are called A) Co-prime. B) Twin prime. C) Composite. D) None. Show Answer Correct Answer: A) Co-prime. 35. Which pair has same digits at hundreds place A) 4232, 4331. B) 2334, 2340. C) 6524, 7823. D) 5432, 6922. Show Answer Correct Answer: B) 2334, 2340. 36. If a number is divisible by 2 and 3 both, then the number is divisible by 6. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 37. Which of the following numbers is divisible by 8? A) 390. B) 160. C) 280. D) 440. Show Answer Correct Answer: D) 440. 38. Which of the following is NOT a factor pair of 24? A) 6 AND 4. B) 12 AND 2. C) 8 AND 4. D) 3 AND 8. Show Answer Correct Answer: C) 8 AND 4. 39. The number of multiples of a given number is ..... A) Finite. B) Infinite. C) None. D) None of the above. Show Answer Correct Answer: B) Infinite. 40. ..... is the 5th multiple of 4 A) 8. B) 16. C) 20. D) 12. Show Answer Correct Answer: C) 20. 41. ..... is a factor of every number. A) 0. B) 1. C) -1. D) None of the above. Show Answer Correct Answer: B) 1. 42. Which of the following are six consecutive composite numbers less than 100? A) 91, 92, 93, 94, 95, 96,. B) 67, 68, 69, 70, 71, 72. C) 51, 52, 53, 54, 55, 56. D) 81, 82, 83, 84, 85, 86. Show Answer Correct Answer: A) 91, 92, 93, 94, 95, 96,. 43. Which of the following is not divisible by 4? A) 376996. B) 189416. C) 789076. D) 789022. Show Answer Correct Answer: D) 789022. 44. Write a digit in the blank space of each of the following numbers so that the number formed is divisible by 11:92 ..... 389 A) 8. B) 6. C) 4. D) 3. Show Answer Correct Answer: A) 8. 45. The first 2 common multiples of 3 and 4 are ..... and ..... A) 12 and 20. B) 12 and 16. C) 12 and 18. D) 12 and 24. Show Answer Correct Answer: D) 12 and 24. 46. Check whether 308 is divisible by 11 or not? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 47. Which of the following numbers shows all of the factors of 12? A) 1, 2, 3, 4, 6, 8, 12. B) 1, 2, 4, 6, 12. C) 2, 4, 6, 8, 10, 12. D) 1, 2, 3, 4, 6, 12. Show Answer Correct Answer: D) 1, 2, 3, 4, 6, 12. 48. ..... is a multiple of 12 A) 12. B) 14. C) 20. D) 28. Show Answer Correct Answer: A) 12. 49. What did Eratosthenes do? A) Found out how to find a square root. B) Found out how to add. C) Found out prime numbers. D) Found out how to multiply. Show Answer Correct Answer: C) Found out prime numbers. 50. What is the divisibility rule for 3? A) Add up the digits. The sum must be even and divisible by 3. B) The digits must add up to 9. C) The last digit must be a 3. D) Add up the digits. The sum must be divisible by 3. Show Answer Correct Answer: D) Add up the digits. The sum must be divisible by 3. 51. Prime numbers have: A) 1 factor. B) 2 pairs of factors. C) More than 2 factors. D) Exactly 2 factors. Show Answer Correct Answer: D) Exactly 2 factors. 52. Which number is a factor of 25? A) 50. B) 1. C) 10. D) 2. Show Answer Correct Answer: B) 1. 53. The sum of prime factors of 1729 are- A) 13. B) 39. C) 19. D) 32. Show Answer Correct Answer: B) 39. 54. 45, 54 AND 63 ARE ALL MULTIPLES OF WHICH NUMBER? A) 3. B) 7. C) 12. D) 9. Show Answer Correct Answer: D) 9. 55. These factors are for which number? 1, 3, 5, 15 A) 15. B) 25. C) 3. D) 5. Show Answer Correct Answer: A) 15. 56. The smallest digit in the '*' of 67*24 so that the number formed is divisible by 3: A) 3. B) 0. C) 1. D) 2. Show Answer Correct Answer: D) 2. 57. Which of the following is divisible by 3? A) 474. B) 85. C) 31. D) 100. Show Answer Correct Answer: A) 474. 58. LCM of 17 and 5 is A) 85. B) 5. C) 95. D) 105. Show Answer Correct Answer: A) 85. 59. The LCM of two consecutive numbers is A) Their Sum. B) Their Product. C) Their Difference. D) None of these. Show Answer Correct Answer: B) Their Product. 60. What is the HCF of 81, 117? A) 21. B) 9. C) 4. D) 13. Show Answer Correct Answer: B) 9. 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