1) Which of the following is a prime number a) 12 b) 17 c) 21 d) 25 2) Which one is NOT a prime number? a) 2 b) 5 c) 9 d) 11 3) What is the smallest prime number? a) 0 b) 1 c) 2 d) 3 4) Which number has exactly two factors? a) 13 b) 15 c) 20 d) 1 5) Which of the following is a prime number? a) 29 b) 33 c) 39 d) 49 6) Which pair shows two prime numbers? a) 9 and 11 b) 11 and 13 c) 12 and 14 d) 15 and 17 7) Which of the following is a prime number? a) 27 b) 31 c) 35 d) 45 8) Which one is a prime number? a) 19 b) 21 c) 25 d) 27 9) Why is 41 a prime number? a) It has 3 factors b) It can be divided by 5 c) It can only be divided by 1 and 41 d) It is an even number 10) Which of the following is NOT a prime number? a) 2 b) 3 c) 7 d) 15

Prime Numbers

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