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Ex 3.5, 9 - In which of, prime factorisation has been done? (a) 24 = 2

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Ex 3.5, 9 - Chapter 3 Class 6 Playing with Numbers - Part 2

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Ex 3.5, 9 - Chapter 3 Class 6 Playing with Numbers - Part 3

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Ex 3.5, 9 - Chapter 3 Class 6 Playing with Numbers - Part 4

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Transcript

Ex 3.5, 9 In which of the following expressions, prime factorization has been done? (a) 24 = 2 × 3 × 4Prime factorization of 24 is ∴ 24 = 2 × 2 × 2 × 3 In the question 4 is given Which is not a prime number So, Prime factorization has not been done in the question. Ex 3.5, 9 In which of the following expressions, prime factorization has been done? (b) 56 = 7 × 2 × 2 × 2Prime factorization of 56 is ∴ 56 = 2 × 2 × 2 × 7 So Prime Factorization has been done Ex 3.5, 9 In which of the following expressions, prime factorization has been done? (c) 70 = 2 × 5 × 7 Prime factorization of 70 is ∴ 70 = 2 × 5 × 7 So Prime factorization has been done Ex 3.5, 9 In which of the following expressions, prime factorization has been done? (d) 54 = 2 × 3 × 9Prime factorization of 54 54 = 2 × 3 × 3 × 3 In this question 9 is given Which is not a prime number. So, Prime factorization has not been done in this question.

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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.