Find HCF and LCM of78, 52 and 91 using the prime factorisation method. – InterviewSolution

1.

Find HCF and LCM of78, 52 and 91 using the prime factorisation method.

Answer»

We first list down the factors of each of the given numbers.

78 = 2 × 3 × 13

52 = 2 × 2 × 13

91 = 7 × 13

HCF:

Answer = 13

LCM :

2 × 2 × 3 × 7 × 13 = 1092

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