19/03/2020 Factors and Multiples(Study by Topics Junior Class) 19/03/2020 0Comments by Gate Academy Welcome to your Factors and Multiples(Study by Topics Junior Class) NAME EMAIL PHONE NUMBER 1. Which number is a factor of 111? 9 11 3 21 2. Seven is a factor of... 21, 28 and 42 1, 7 and 14 14, 27 and 72 37, 47 and 57 3. Six has all the following factors... 1, 2, 3, 6 3, 6, 12, 18 2, 4, 6 3, 4, 5 4. Which set of numbers are all Primes? None of the above 33, 29, 41, 3 5, 23, 11, 37 63, 71, 43, 81 5. Which list is made up of multiples of 7? 19, 26, 33 7, 14, 70 14, 25, 35 21, 35, 52 6. What is the HCF of 24 and 36? 12 4 9 6 7. The factors of 35 are 1, 5, 7, 35 5, 15, 20, 35 1, 2, 4, 7, 35 1, 3, 5, 35 8. A number is a multiple of 6 if _____ The sum of all of its digits is divisible by 6 The last digit is 6 Its last two digits form a number divisible by 6 The sum of all its digits is divisible by 3 and the last digit is even 9. The number 1 is _______ A Composite number A Prime number Neither a Prime or Composite number Both a Prime and Composite number 10. All of the factors for the number 12 are: 1,2,3,4,6,12 True False 11. The numbers 20 and 30 have which of the following common factors 2,3,4,5,6,10 2,4,5,6,10 2,4,5,10 2,3,4,5,10 12. What is the greatest common factor of 12 and 18? 9 6 2 4 13. Which two numbers are relatively prime? 30 and 45 9 and 16 21 and 56 18 and 27 14. Which is the greatest common factor of 45 and 60? 30 45 15 5 15. The factors of 18 include the following except 4 6 3 2 9 16. How many factors does a Prime number have? 3 4 2 1 17. 9 is a factor of... 45 and 54 28 and 82 1, 3 and 9 9 and 49 18. Which list is made up of multiples of 4? 12, 22, 28 8, 16, 36 4, 14, 24 1, 4, 40 19. Find the LCM of 6ab and 5b². 3ab² 36ab² 30ab² 30b² 6ab 20. Find the HCF of 18a²y and 27x²y³. 9ax 2ay 6ax 6axy 9y 1 out of 20 Time is Up! Time's up
