1) A number that has only two factors, 1 and the number itself, is called a a) composite number b) prime number 2) Which of the following is the smallest prime number? a) 1 b) 3 c) 5 d) 2 3) Which of the following numbers is a composite number? a) 11 b) 37 c) 41 d) 57 4) The smallest composite number is: a) 2 b) 3 c) 1 d) 4 5) How many prime numbers are there between 10 and 20? a) 3 b) 5 c) 4 d) 9

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