Question (c) - Page 53 (Figure it out) - Finding HCF using Prime Factorisation - Chapter 3 Class 7 - Finding Common Ground (Ganita Prakash II)

Last updated at August 14, 2026 by

[Maths] Find the common factors and the HCF of the numbers 77, 725 - Finding HCF using Prime Factorisation

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Question (c) - Page 53 (Figure it out) Find the common factors and the HCF of the following numbers: (c) 77, 725Let’s find Prime Factorisation of both 77 & 725 Now, 77 = 7 × 11 725 = 5 × 5 × 29 Since there are no common prime factors , only 1 will be the common factor ∴ HCF = 1

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