Question

Find the HCF of the following numbers by listing the factors.
a) 27,81​

Answer 1

Answer:

HCF of 27 and 81 = 27

Step-by-step explanation:

27 = 3×3×3

81 = 3×3×3×3

HCF = 3×3×3 = 27

Answer 2

Answer:

The prime factorization of 81 is: 3 x 3 x 3 x 3. The prime factors and multiplicities 27 and 81 have in common are: 3 x 3 x 3. 3 x 3 x 3 is the gcf of 27 and 81. gcf(27,81) = 27.

Step-by-step explanation:

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