Math, asked by kk546313, 20 days ago

3. Find the HCF of the by prime factorisati (1) 18 and 30 (3) 18 and 42 (5) 54 and 72 (7) 48 and 64​

Answers

Answered by bkbebybahen
3

Answer:

Highest common factor (HCF) of 18, 30 is 6.

Prime factorization of 18 and 42 is (2 × 3 × 3) and (2 × 3 × 7) respectively. As visible, 18 and 42 have common prime factors. Hence, the HCF of 18 and 42 is 2 × 3 = 6.

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