1) What is a multiple? a) A number that goes into the starting number exactly b) A number in the times table of the starting number c) A number with only two factors d) The answer when you times a number by itself 2) Which number is a multiple of 12? a) 3 b) 6 c) 24 d) 8 e) 4 3) Which number is a multiple of 15? a) 1 b) 5 c) 3 d) 45 e) 10 4) What is a factor? a) A number that goes into the starting number exactly b) A number in the times table of the starting number c) A number with only two factors d) The answer when you times a number by itself 5) Which number is a factor of 24? a) 48 b) 6 c) 36 d) 16 e) 20 6) Which number is a factor of 81? a) 18 b) 243 c) 0 d) 11 e) 3 7) Which number is a factor of 30? a) 10 b) 90 c) 16 d) 20 e) 9 8) What is a prime number? a) A number that goes into the starting number exactly b) A number in the times table of the starting number c) A number with only two factors d) The answer when you times a number by itself 9) What are the first 5 prime numbers? a) 1,2,3,5,7 b) 2,3,5,7,11 c) 1,4,9,16,25 d) 1,2,3,4,5 10) 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 11) What is a square number? a) A number that goes into the starting number exactly b) A number in the times table of the starting number c) A number with only two factors d) The answer when you times a number by itself 12) Here is a list of numbers. 3,4,5,9,10 Which of these numbers is a square number? a) 3 b) 4 c) 5 d) 9 e) 10 13) What are the first 5 square numbers? a) 1,2,3,4,5 b) 5,10,15,20,25 c) 1,4,9,16,25 d) 36,49,64,81,100 14) 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 15) 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 16) How many factors does the number 24 have? a) 4 b) 6 c) 8 d) 2 e) 10 17) Which is a common factors of 12 and 18? a) 4 b) 12 c) 9 d) 6

Factors Multples and Primes KS3

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