1) Which number is a factor of 24? a) 48 b) 6 c) 36 d) 16 e) 20 2) Which number is a factor of 81? a) 18 b) 243 c) 0 d) 11 e) 3 3) Which number is a factor of 30? a) 10 b) 90 c) 16 d) 20 e) 9 4) Which number is a multiple of 12? a) 3 b) 6 c) 24 d) 8 e) 4 5) Which number is a multiple of 15? a) 1 b) 5 c) 3 d) 45 e) 10 6) Here is a list of numbers. 2,5,6,8,24 Which two of these numbers are factors of 12? a) 6 and 8 b) 2 and 6 c) 2 and 8 d) 8 and 24 e) 2 and 5 7) Here is a list of numbers. 3,4,5,7,10 Which two of these numbers are factors of 45? a) 5 and 10 b) 5 and 7 c) 3 and 5 d) 3 and 7 e) 4 and 10 8) Here is a list of numbers. 2,4,6,7,9,10 Which two of these numbers are prime? a) 2 and 7 b) 2 and 9 c) 7 and 10 d) 4 and 7 e) 2 and 6 9) Which are common factors of 12 and 18? a) 4 and 3 b) 2 and 3 c) 3 and 9 d) 6 and 9 e) 2 and 4 10) How many factors does the number 24 have? a) 4 b) 6 c) 8 d) 2 e) 10

factors and multiples quiz

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