Number Systems Problems and Solutions (CBSE Class 10) Q1: Find HCF and LCM of 126 and 156 using prime factorization method. Answer: HCF of 126 is: 126 ╱╲ 2 63 ╱╲ 3 21 ╱╲ 3 7 ∴ 126 = 2 × 3 × 3 × 7 = 2 × 3² × 7 HCF of 156 is: 156 ╱╲ 2 78 ╱╲
Number Systems Problems and Solutions (CBSE Class 10) Q1: Find HCF and LCM of 126 and 156 using prime factorization method. Answer: HCF of 126 is: 126 ╱╲ 2 63 ╱╲ 3 21 ╱╲ 3 7 ∴ 126 = 2 × 3 × 3 × 7 = 2 × 3² × 7 HCF of 156 is: 156 ╱╲ 2 78 ╱╲
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