Question

Find the HCF of 18 36 27 ?
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Answer 1

solution★

18 , 36 , 27 do factorise

$= > 18 = 2 \times 3 \times 3 \\ \\ = > 36 =2 \times 2 \times 3 \times 3 \\ \\ = > 27 = 3 \times 3 \times 3$

we see that common factorise

$= 3 \times 3$

so HCF

$= > 3 \times 3 = 9$

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I hope it helps you

Answer 2

Answer:

using factorisation method

18=2-2-3

36=2-2-3-3

27=3-3-3

therefore, answer is 3