Welcome to your Factors and Multiples(Study by Topics Junior Class) NAME EMAIL PHONE NUMBER 1. Which of the following lists the prime factorization of the number 28? 2,4,6 2,14 2,2,3 2,2,7 2. Which of the following is a prime number? 12 4 22 7 3. The first three multiples of 8 are 16, 24, 32 None of the above 8, 16, 24 2,3,8 4. The factors of 24 include 1, 5, 12 1, 8, 12 1, 6, 9 15, 30, 48 5. Six has all the following factors... 3, 4, 5 1, 2, 3, 6 3, 6, 12, 18 2, 4, 6 6. What is the LCM of ab^{2} and a^{2}b^{3}? a²b² a²b ab a²b³ ab² 7. Which list is made up of multiples of 7? 7, 14, 70 19, 26, 33 14, 25, 35 21, 35, 52 8. Which set of numbers are all Primes? 5, 23, 11, 37 33, 29, 41, 3 63, 71, 43, 81 None of the above 9. Which list is made up of multiples of 4? 8, 16, 36 12, 22, 28 4, 14, 24 1, 4, 40 10. What is the greatest common factor of 12 and 18? 6 4 2 9 11. What is the HCF of 24 and 36? 6 9 12 4 12. What are all of the factors of 84? 1, 2, 3, 4, 7, 12, 21, 42, 84 2, 3, 7 1, 2, 3, 4, 7, 12, 21, 28, 42, 84 1, 2, 4, 21, 42, 84 13. All of the factors for the number 12 are: 1,2,3,4,6,12 False True 14. Find the LCM of 6ab and 5b². 6ab 30b² 30ab² 36ab² 3ab² 15. A properly done factor rainbow will not show us all the factors of a number. True False 16. Which number below is the highest common factor, or HCF, of the numbers 24 and 36? 6 5 3 12 17. Find the HCF of 18a²y and 27x²y³. 6axy 9y 9ax 6ax 2ay 18. Which of the following is a multiple of 16? 8 88 64 27 19. How many multiples does 10 have? 100 An infinity 4 9 20. Find the HCF of 8xy and 24y². 3xy xy² 8y 8xy 3y 1 out of 20 Time is Up! Time's up