Question 2 - Page 51 - Prime Factorisation - Chapter 3 Class 7 - Finding Common Ground (Ganita Prakash II)

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Question 2 - Page 51 Find the factors of 225 using prime factorisation.Let’s do Prime Factorisation of 225 So, we can write 225 = 5 × 5 × 3 × 3 Now, Factors would be Prime Factors Let’s do Prime Factorisation of 225 So, we can write 225 = 5 × 5 × 3 × 3 Now, Factors would be Prime Factors Factors are 3 × 3 × 5 = 45 3 × 5 × 5 = 75 Combination of four prime factors: Factors are 3 × 3 × 5 × 5 = 225 Thus, Factors of 225 are 1, 3, 5, 9, 15, 25, 45, 75, 225