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Ex 6.1, 1 Which of the following numbers are not perfect cubes? (iv) 100 Doing Prime factorization of 100 We see that 100 = 2 × 2 × 5 × 5 Since 2 & 5 do not occur in triplets, ∴ 100 is a not perfect cube.

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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 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.