Prime Time – Class 6 Maths Chapter 5 MCQ Questions with Answers | Ganita Prakash Book

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Last Updated on June 26, 2025 by XAM CONTENT

Understanding the key concepts of Class 6 Maths Chapter 5 – Prime Time is crucial for exam success. To make your revision easier, we have created chapterwise mcq questions with Answers for class 6 Maths based on the latest syllabus and exam pattern. It is a part of MCQ Questions for CBSE Class 6 Maths Series.

These multiple-choice questions will help you assess your knowledge, improve accuracy, and boost confidence for your exams. Whether you are preparing for school tests, online tests or competitive exams, these Prime Time MCQs will strengthen your conceptual clarity.

ChapterPrime Time
BookGanita Prakash
Type of QuestionsMCQ Questions
Nature of QuestionsCompetency Based Questions
BoardCBSE
Class6
SubjectMaths
Useful forClass 6 Studying Students
Answers providedYes
Difficulty levelMentioned
Important LinkClass 6 Maths Chapterwise MCQ Questions

MCQ Questions on Prime Time Class 6 Maths (PDF Download)

MCQs

Q1. In the ‘idli-vada’ game, which of these numbers would you say ‘idli-vada’ for?
(a) 10
(b) 15
(c) 20
(d) 25

Show Answer

Answer: (b)
Explanation: 15 is a multiple of both 3 and 5, so it becomes ‘idli-vada’.

Q2. What is the 10th number that players say ‘idli-vada’ for?
(a) 60
(b) 75
(c) 90
(d) 150

Show Answer

Answer: (c)
Explanation: LCM of 3 and 5 is 15. 10th multiple = 15 × 10 = 150.

Q3. What are the common factors of 14 and 36?
(a) 1 and 2
(b) 1 and 7
(c) 1 and 4
(d) 1 and 3

Show Answer

Answer: (a)
Explanation: Factors of 14: 1,2,7,14; Factors of 36: 1,2,3,4… So common factors = 1 and 2.

Q4. Which of these numbers is divisible by both 4 and 5?
(a) 20
(b) 30
(c) 40
(d) 45

Show Answer

Answer: (a)
Explanation: Only 20 is divisible by both 4 and 5.

Q5. Which number is a perfect number?
(a) 6
(b) 12
(c) 28
(d) 36

Show Answer

Answer: (c)
Explanation: 28 is the only perfect number here, as sum of its factors is 56.

Q6. Which number below has exactly three distinct prime factors?
(a) 30
(b) 45
(c) 60
(d) 91

Show Answer

Answer: (a)
Explanation: 30 = 2 × 3 × 5 — three distinct primes.

Q7. Which of these is a co-prime pair?
(a) 12 and 18
(b) 15 and 35
(c) 17 and 29
(d) 25 and 30

Show Answer

Answer: (c)
Explanation: 17 and 29 have no common factors other than 1.

Q8. Which number has the prime factorisation 2 × 2 × 3 × 3?
(a) 18
(b) 36
(c) 72
(d) 12

Show Answer

Answer: (b)
Explanation: 2 × 2 × 3 × 3 = 4 × 9 = 36.

Q9. Which of these numbers is not divisible by 4?
(a) 24
(b) 32
(c) 36
(d) 42

Show Answer

Answer: (d)
Explanation: 42 ÷ 4 = 10.5, not divisible.

Q10. What is the smallest number divisible by all numbers from 1 to 10?
(a) 100
(b) 360
(c) 2520
(d) 1230

Show Answer

Answer: (c)
Explanation: LCM of 1 to 10 is 2520.

Q11. Which of these numbers will fail the divisibility test for 2?
(a) 16
(b) 24
(c) 31
(d) 48

Show Answer

Answer: (c)
Explanation: 31 ends with 1 — not even.

Q12. In the prime sieve method, which number is crossed out first after 2?
(a) 3
(b) 5
(c) 4
(d) 6

Show Answer

Answer: (c)
Explanation: Multiples of 2 — first one after 2 is 4.

Q13. Which two-digit number is a palindrome and prime?
(a) 11
(b) 33
(c) 22
(d) 44

Show Answer

Answer: (a)
Explanation: 11 is a prime and a palindrome.

Q14. What is the smallest prime number?
(a) 1
(b) 2
(c) 3
(d) 5

Show Answer

Answer: (b)
Explanation: 2 is the smallest and the only even prime number.

Q15. Which of these numbers is the product of exactly 3 distinct primes?
(a) 60
(b) 91
(c) 45
(d) 105

Show Answer

Answer: (d)
Explanation: 105 = 3 × 5 × 7.

Q16. Which of these is a twin prime pair?
(a) 29 and 31
(b) 21 and 23
(c) 33 and 35
(d) 2 and 4

Show Answer

Answer: (a)
Explanation: Twin primes differ by 2. 29 and 31 qualify.

Q17. Which number has 1, 2, 4, 7, 14, and 28 as its factors?
(a) 14
(b) 28
(c) 21
(d) 35

Show Answer

Answer: (b)
Explanation: 28 is a perfect number with these factors.

Q18. Which number is divisible by both 2 and 4 but not by 8?
(a) 24
(b) 20
(c) 16
(d) 8

Show Answer

Answer: (b)
Explanation: 20 is divisible by 2 and 4, but 20 ÷ 8 = 2.5.

Q19. Which number below is a composite number?
(a) 13
(b) 17
(c) 20
(d) 19

Show Answer

Answer: (c)
Explanation: 20 has more than 2 factors, so it’s composite.

Q20. Which of these pairs are NOT co-prime?
(a) 13 and 15
(b) 21 and 28
(c) 35 and 48
(d) 17 and 20

Show Answer

Answer: (b)
Explanation: 21 and 28 have 7 as a common factor.

We hope the given mcq questions with Answers for Prime Time Class 6 helps you in your learning.

Also check

🚀 Boost Your Exam Prep: Get MCQ Questions for all subjects (Class 6-12) now!

👉 Explore more resources on CBSE Class 6

Topics from which mcq questions may be asked

  • Prime and composite numbers
  • Factors and multiples
  • Tests of divisibility

Prime numbers are the building blocks of mathematics.

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Frequently Asked Questions (FAQs) on Prime Time MCQ Questions

Q1: Why should I practice Class 6 Maths Chapter 5 MCQs?

A1: Practicing MCQs helps in quick revision, improves problem-solving speed, and enhances conceptual understanding of important topics in Class 6 Maths.

Q2: Are these Class 6 Maths MCQs based on the latest syllabus?

A2: Yes, all the MCQs are designed as per the latest CBSE syllabus and exam pattern to help students prepare effectively.

Q3: Where can I find more MCQs for Class 6 Maths?

A3: You can find more chapter-wise MCQs on our website. These are designed to cover important concepts and prepare you for exams.

Q4: Are the answers provided for all MCQs?

A4: Yes, each MCQ is accompanied by the correct answer and explanations to help students understand and learn better.

Q5: How can I improve my performance in Class 6 Maths MCQs?

A5: To improve your performance, practice regularly, revise key concepts, and take mock tests to assess your knowledge.

Q6: Do these MCQs help in school exams?

A6: Yes, these MCQs are aligned with school exam patterns and help in scoring well by strengthening conceptual clarity.

Q7: Can I download these MCQs for offline practice?

A7: Yes, you can download or print these MCQs for convenient offline practice.

Q8: Are there any online resources or tools available for practicing Prime Time mcq questions?

A8: We provide mcq questions for CBSE Class Maths on our website. Students can visit the website and practice sufficient mcq questions and prepare for their exams. If you need more mcq questions, then you can visit Physics Gurukul website. they are having a large collection of case study questions for all classes.

Prime Time – Class 6 Maths Chapter 5 MCQ Questions with Answers | Ganita Prakash Book

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