1) What Is the Highest common factor of 15 & 20? a) 5 b) 4 c) 3 d) 2 e) 1 2) What Is the Highest common factor of 12 & 30? a) 10 b) 8 c) 6 d) 4 e) 2 3) What Is the Highest common factor of 50 & 120? a) 7 b) 8 c) 9 d) 10 4) What Is the Highest common factor of 18 & 21? a) 1 b) 2 c) 3 d) 4 e) 6 5) What Is the Highest common factor of 88 & 121? a) 9 b) 10 c) 11 d) 12 6) What Is the Highest common factor of 9 and 21? a) 1 b) 3 c) 9 d) 7 7) What Is the Highest common factor of 8 and 18? a) 4 b) 2 c) 6 d) 8 8) What Is the Highest common factor of 40 and 72? a) 6 b) 12 c) 6 d) 8 9) What Is the Highest common factor of 10 and 15? a) 4 b) 5 c) 10 d) 3 10) What Is the Highest common factor of 20 and 30 a) 23 b) 15 c) 10

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