1) Which of these pair of numbers are prime? a) 1 and 2 b) 2 and 3 c) 2 and 4 2) Which statement is true about a composite number? a) It has only 2 factors. b) It has 2 or more factors. c) Has to be an even number. 3) How many factors does 20 have? a) 4 b) 6 c) 12 4) The product of a number multiplied by itself is called a) prime number b) even number c) square number 5) Which of these is a square number? a) 16 b) 5 c) 10




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