Ex 6.1, 1 (iv) - Chapter 6 Class 8 Cubes and Cube Roots

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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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