Question

Find the H.C.F by prime factorization method:- 45 & 75​

Answer 1

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Prime factorization of 45 is (3 × 3 × 5)

Prime factorization of 75 is (3 × 5 × 5)

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As visible, 45 and 75 have common prime factors.

Hence, the HCF of 45 and 75 is 3 × 5 = 15.

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${ \red{ \fbox{ Final Answer = 15}}}$