Question

fimd the hcf by prime factorisation 24,54​

Answer 1

Answer:

$2 |24| \\ 2|12| \\2 |6| \\ 2 |3| \\ 3 |1|$

$2 |54| \\ 3|27| \\ 3 |9| \\ 3 |3| \\ 3 |1|$

24 = 2×2×2×2×3

54 = 2×3×3×3×3

HCF = (2×2)(3×3) Only the no.s which are comman in both by pair

= 2×3

= 6

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