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Example 6 - Find LCM HCF of 6 and 20 by prime factorisation - LCM/HCF

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Example 6 - Chapter 1 Class 10 Real Numbers - Part 2
Example 6 - Chapter 1 Class 10 Real Numbers - Part 3

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Example 6 (Method 1) Find the LCM and HCF of 6 and 20 by the prime factorisation method. 6 = 2 3 6 = 21 31 H.C.F = Product of smallest power of each common prime factor = 21 = 2 L.C.M = Product of greatest power of each prime factor = 22 31 5 = 4 3 5 = 60 Example 6 (Method 2) Find the LCM and HCF of 6 and 20 by the prime factorisation method. 6 = 2 3 20 = 2 2 5 H.C.F = 2 Finding L.C.M L.C.M = 2 2 3 5 = 60

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.