# Find the HCF and LCM of 6, 72 and 120 using the prime factorisation method

**Solution:**

We will use the prime factorisation to find the LCM and HCF of 6, 72 and 120

⇒ 6 = 2 × 3

⇒ 72 = 2 × 2 × 2 × 3 × 3

⇒ 120 = 2 × 2 × 2 × 3 × 5.

HCF = 2 × 3 = 6

LCM = 2 × 2 × 2 × 3 × 3 × 5 = 360

ā Check: NCERT Solutions for Class 10 Maths Chapter 1

## Find the HCF and LCM of 6, 72 and 120 using the prime factorisation method

**Summary:**

The LCM and HCF of 6, 72 and 120 by prime factorisation method is 360 and 6 respectively

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