Question

Express 72 and 135 as the product of prime factors and also find their HCF.

Answer 1

72= 2×2×2×3×3
135=3×3×3×5
hcf=3×3
=9
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Answer 2

prime factors
72:2*2*2*3*3
135:3*3*3*5
HCF is 9
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