Class 6 - Playing with Numbers Worksheet 1
1. The numbers which have more than two factors are called ________.
a) Odd b) Even
c) Prime d) Composite
2. The numbers which are not multiples of 2 are known as ________.
a) Odd b) Even
c) Prime d) Composite
3. The two numbers which have only 1 as their common factor are called _________.
a) Twin primes b) Co-primes
c) Composite d) None of these
4. The number which is neither prime nor composite is _____.
a) 1 b) 0
c) 2 d) 3
5. Every number is a ________ and ________ of itself.
a) Prime, Composite
b) Even, Odd
c) Factor, Multiple
d) None of these
6. The numbers which have factors as 1 and the number itself, then they are known as ________.
a) Even b) Composite
c) Prime d) None of these
7. LCM of two co-prime numbers is their ________.
a) Sum b) Product
c) Difference d) None of these
8. LCM of 4 and 13 is _____.
a) 4 b) 13
c) 9 d) 52
9. LCM of 17 and 4 is _____.
a) 17 b) 58
c) 68 d) None of these
10. HCF of 36 and 64 is _____.
a) 2 b) 36
c) 4 d) 64
11. LCM of 36 and 73 is _____.
a) 36 b) 64
c) 27 d) 72
12. An example of twin primes is _____.
a) 5, 13 b) 5, 7
c) 4, 11 d) 3, 7
13. Common factors of 9 and 27 are _____.
a) 1, 9 , 12 b) 1, 9, 27
c) 1, 3, 9 d) None of these
14. HCF of the two numbers = ________.
a) Product of two numbers x their LCM
b) Product of two numbers ÷ their LCM
c) Product of numbers
d) None of these
15. HCF of two co-prime numbers is _____.
a) 0 b) 2
c) 1 d) None of these
16. Which one is the even number?
a) 17535 b) 28937
c) 98976 d) None of these
17. Which number is the factor of every number?
a) 0 b) 2
c) 3 d) 1
18. The prime number which comes just before 47 is _____.
a) 42 b) 43
c) 45 d) None of these
19. If the HCF of two numbers is 1, then they are known as ________.
a) An odd number
b) An even number
c) A composite number
d) None of these
20. Every prime number is an odd number, mark True / False.
a) True b) False
21. Which is the smallest prime number?
a) 0 b) 1
c) 2 d) None of these
22. The HCF of two given numbers is always a factor of their LCM. Mark True / False.
a) True b) False
23. The HCF of given numbers is greater than any of the numbers. Mark True / False.
a) True b) False
24. HCF of two co-prime number is greater than 1. Mark True/False.
a) True b) False
25. Product of two numbers = Product of their HCF and LCM. Mark True / False.
a) True b) False
If you want to download the above worksheet, please click below link.
Playing with Numbers Worksheet-1Download the pdf
Playing with Numbers Worksheet - 1
Playing with Numbers Worksheet - 2
Playing with Numbers Worksheet - 3
Answer Sheet
Playing-with-Numbers-AnswerDownload the pdf
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