Question

Find the hcf for 30 and 42 by prime factorisation

Answer 1

Answer:

Find the prime factorization of 30

30 = 2 × 3 × 5

Find the prime factorization of 42

42 = 2 × 3 × 7

= 2 × 3  

6 is the req hcf

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Answer 2

your answer is here.

higest common factor of 30 and 42 is 3