Example 4 - Chapter 3 Class 7 - Finding Common Ground (Ganita Prakash II)

Last updated at August 14, 2026 by

Find the HCF of 30 and 72 - Class 7 Ganita Prakash Part 2 Teachoo - Finding HCF using Prime Factorisation

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Example 4 Find the HCF of 30 and 72.Let’s find Prime Factorisation of both 30 & 72 Now, 30 = 2 × 3 × 5 72 = 2 × 2 × 2 × 3 × 3 HCF of 30, 72 = 2 × 3 = 6

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