Question

find the H.C.F by prime factorization method. (a) 81,117​

Answer 1

Answer:

The HCF of 81 and 117 is 9.

Steps to find HCF

1. Find the prime factorization of 81

81 = 3 × 3 × 3 × 3

2. Find the prime factorization of 117

117 = 3 × 3 × 13

3. To find the HCF, multiply all the prime factors common to both numbers:

Therefore, HCF = 3 × 3

HCF = 9

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Answer 2

Answer:

answer is in the attachment