Ex 6.1, 3 (iii) - Chapter 6 Class 8 Cubes and Cube Roots

Last updated at August 14, 2026 by

Ex 6.1, 3 - Find smallest number to divide 135, to obtain perfect cube - Ex 6.1

part 2 - Ex 6.1, 3 (iii) - Ex 6.1 - Serial order wise - Chapter 6 Class 8 Cubes and Cube Roots

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Ex 6.1, 3 Find the smallest number by which each of the following numbers must be divided to obtain a perfect cube. (iii) 135 We see that 135 = 3 × 3 × 3 × 5 Since 5 does not occur in triplets, ∴ 135 is not a perfect cube. So, we divide by 5 to make triplet So, our number becomes 135 × 𝟏/𝟓 = 3 × 3 × 3 × 5 × 𝟏/𝟓 = 3 × 3 × 3 Now, it becomes a perfect cube. So, we divide 135 by 5 to make it a perfect cube

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