Question

find HCF and LCM of 18 54 81​

Answer 1

Step-by-step explanation:

$18 = 2 \times 3 \times 3 \times 1 \\ 54 = 2 \times 3 \times 3 \times 3 \\ 81 = 3 \times 3 \times 3 \times 3 \\ hcf(18.54.81) = 3 \times 3 = 9 \\ lcm(18.54.81) = 162$

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