1) Which of the following are factors of 20? a) 3 b) 5 c) 1 d) 4 e) 8 f) 20 2) Which of the following are factors of 42? a) 3 b) 12 c) 14 d) 21 e) 7 f) 11 3) Which of the following are prime factors of 36? a) 2 b) 1 c) 12 d) 3 e) 9 f) 4 4) Which of the following are prime factors of 30? a) 1 b) 3 c) 5 d) 2 e) 10 f) 15

2.1a & b Factors & Prime Factors

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