Ex 1.1, 3 (iii) - Chapter 1 Class 10 Real Numbers

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Ex 1.1, 3 Find the LCM and HCF of the following integers by applying the prime factorisation method. (iii) 8, 9 and 25 Finding HCF Since no factor is common So, 1 must be common ∴ H.C.F = 1 8 = 2 × 2 × 2 9 = 3 × 3 25 = 5 × 5 Finding L.C.M L.C.M = 2 × 2 × 2 × 3 × 3 × 5 × 5 = 8 × 9 × 25 = 1800

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