1.

Fort do the prime factorisation of the number, then list the factor with the help of prime factorisationA. 28B. 63C. 42

Answer»

Here is your answer

(1) 28 = 2×2×7
COMMON factor = 2

(2) 63 = 3×3×7
common factor = 3

(3) 42= 2×3×7
common factor = 1

hope this helps you
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