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

Last updated at Dec. 13, 2024 by

Ex 1.1, 3 (i) - Find LCM and HCF of 12, 15 and 21 [with Video] - Ex 1.1

part 2 - Ex 1.1, 3 (i) - Ex 1.1 - Serial order wise - 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. 12, 15 and 21 Finding HCF 12 = 2 × 2 × 3 15 = 3 × 5 21 = 3 × 7 ∴ H.C.F = 3 L.C.M = 2 × 2 × 3 × 5 × 7 = 420

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo