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Ex 7.1, 1 - Chapter 7 Class 8 Cubes and Cube Roots - Part 5

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Ex 7.1, 1 Which of the following numbers are not perfect cubes? (v) 46656Doing Prime factorization of 46656 We see that 46656 = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 Since all factors occur in triplets, ∴ 46656 is a perfect cube.

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.