1) What is the GCF of 12 and 18? a) 6 b) 4 c) 3 2) What is the GCF of 14 and 49? a) 7 b) 14 c) 21 3) What is the GCF of 24 and 36? a) 12 b) 6 c) 18 4) What is the GCF of 15 and 45? a) 15 b) 5 c) 10 5) What is the GCF of 16 and 40? a) 8 b) 16 c) 4 6) What is the GCF of 18 and 24? a) 6 b) 12 c) 9 7) What is the GCF of 21 and 35? a) 7 b) 14 c) 5 8) What is the GCF of 28 and 42? a) 14 b) 7 c) 21 9) What is the GCF of 30 and 50? a) 10 b) 5 c) 15 10) What is the GCF of 6 and 18? a) 6 b) 3 c) 9 11) What is the GCF of 22 and 44? a) 11 b) 22 c) 33 12) What is the GCF of 12, 18, and 24? a) 6 b) 4 c) 3 d) 2 13) What is the GCF of 30, 45, and 60? a) 15 b) 10 c) 5 d) 3 14) What is the GCF of 14, 28, and 42? a) 14 b) 7 c) 6 d) 4 15) What is the GCF of 16, 32, and 48? a) 8 b) 6 c) 4 d) 2 16) What is the GCF of 21, 35, and 49? a) 7 b) 5 c) 3 d) 2 17) What is the GCF of 50, 75, and 100? a) 25 b) 20 c) 15 d) 10

Greatest Common Factor: Level 2

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