Question

What is the HCF of 18,54 and 81

Answer 1

Answer:

Multiply all the factors which appear in both the list. Therefore, HCF of 27 and 45 is 9. Solution: Let's find the HCF by prime factorization method. The HCF of 18, 54 and 81 is 9.

Step-by-step explanation:

18=2×3^2

54=2×3^2×3

81=3^2×3^2.

The common term is 9(3^2).

Therefore HCF is 9.