Question (c) - Page 51 (Figure it out) - Prime Factorisation - Chapter 3 Class 7 - Finding Common Ground (Ganita Prakash II)

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Question (c) - Page 51 (Figure it out) List all the factors of the following numbers: (c) 132Let’s do Prime Factorisation of 132 So, we can write 132 = 2 × 2 × 3 × 11 Now, Factors would be Prime Factors Combination of prime factors And, number 1 Let’s look at each one of them Prime Factors: Prime Factors are 2, 3, 11 Combination of two prime factors: Factors are 2 × 2 = 4 2 × 3 = 6 2 × 11 = 22 3 × 11 = 33 Combination of three prime factors: Factors are 2 × 2 × 3 = 12 2 × 2 × 11 = 44 2 × 3 × 11 = 66 Combination of four prime factors: Factors are 2 × 2 × 3 × 11 = 132 Thus, Factors of 132 are 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132