Question
Find the H.C.F of the following numbers using prime factorization method:
81,117
81,117
✓
Answer
81 and 117
Prime factorization of 81 = 3 × 3 × 3 × 3
Prime factorization of 117 = 3 × 3 × 13
Therefore, HCF = 3 × 3 = 9
Prime factorization of 81 = 3 × 3 × 3 × 3
Prime factorization of 117 = 3 × 3 × 13
Therefore, HCF = 3 × 3 = 9
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