Question

find the HCF and LCM of 117 ,221 by prime factorization method​

Answer 1

Answer:

The prime factorisation of 117 is 3, 3 and 13

And teh prime factorisation of 221 is 13, 17

So 13 is common in both of these so so the prime factors of 117 and 221 is 13 hence HCF is 13

LCM of 117,221 is 1989

Answer 2

Answer:

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