Find the HCF of the following numbers using the prime factorization method. 81,117

Foundation

Mathematics Foundation

HCF and LCM

Properties of Real Number

Linear Equations in One Variable

Question

Find the HCF of the following numbers using the prime factorization method. 81,117

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Let us write th given numbers as product of their prime factors,

81 = 3 × 3 × 3 × 3

117 = 3 × 3 × 13

So,

HCF (81,117) = 3 × 3

= 9