Question
Find the H.C.F of the following numbers using prime factorization method:
144,198
144,198
✓
Answer
144 and 198
Prime factorization of 144 = 2 × 2 × 2 × 3 × 3
Prime factorization of 198 = 2 × 3 × 3 ×11
Therefore, HCF = 2 × 2 × 3 = 18
Prime factorization of 144 = 2 × 2 × 2 × 3 × 3
Prime factorization of 198 = 2 × 3 × 3 ×11
Therefore, HCF = 2 × 2 × 3 = 18
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