Number Systems 6.1.3 S

© 2009 -2011 tutorco.com 1 Q1. Is 2 a prime number? Q2. Is 12 a composite number? Q3. Write the prime numbers which come between 1to10 Q4. Select the prime numbers and composite numbers and write prime numbers in box and composite in circle:-23, 2, 12, 45, 64, 31, 10, 17, 36, 71, 91, 14, 13, 11, 5, 42 GRADE 6 TOPIC: NUMBER SYSTEM 6/1/3/S © 2009 -2011 tutorco.com 2 Q5. Find the factors:-31 = 24 = Q6. Find the prime factorization of 32 Q7. The number 13 is a ______________ number. {prime or composite} Q8. Find the composite number with exactly 5 factors {circle the correct answer} 16 14 8 None of above © 2009 -2011 tutorco.com 3 Q9. Fill the missing digit:-30 ____ 5 2 ___ Q10. Find the number whose prime factorization is given below:-2 x 3 x 5 = © 2009 -2011 tutorco.com 4 Q11. Find the prime factorization:-72 Q12. Tick the correct answer:-76 Prime______ Composite______ Q13. Tick the correct answer:-61 Prime______ Composite_____ Q14. Find the prime factorization:-63 Q15. Fill the missing factors:-18 = 1 ____ 3 ____ ____ ____ © 2009 -2011 tutorco.com 5 Q16. Draw the factor tree:-84 Q17. Which number is neither prime nor composite? Q18. How many prime numbers are there between 10 and 30? Q20. Find the number whose prime factorization is given below:-3 x 5 x 2 x 2 x 7 = Q19. Find the prime factorization of “66” © 2009 -2011 tutorco.com 6 Q21. Give an example of prime number which is more than 50. Q22. Give an example of composite number which is more than 50. Q23. Complete the factors:-46 = 1, 2, ______, ______ Q24. Find the prime factorization:-56 Q25. Find the prime factorization of “94” Q26. _______ is an even prime number. 1 0 2 4 © 2009 -2011 tutorco.com 7 Q27. A prime number has ________________ factors. Exactly one Many Exactly two Zero Q28. (5, 7, 11, 13 and 17) are the examples of _________________ Q29. Give an example of prime and composite number which is more than 100 and write their factors? Q30. Complete the factor tree:-124