Question

Find the HCF of 16 and 27
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Answer 1

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HCF of 16 = 2×2×2×2

HCF of 27 = 3×3×3

Answer 2

Answer:

1

Step-by-step explanation:

on prime factorisation of 16 & 27 we get:

16 = 2*2*2*2

   = $2^{4}$

27 = 3*3*3

   = $3^{3}$

There is nothing common in both and as the word HCF itself says HIGHEST COMMON FACTOR.

NOTE: when there is nothing common in prime factorisation of any two or more numbers then the HCF is always 1

∴ HCF ( 16,27) = 1

Hope it is helpful