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Chapter 7 Class 8 Cubes and Cube Roots
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Example 7 - Chapter 7 Class 8 Cubes and Cube Roots

Last updated at Sept. 11, 2018 by

Example 7 - Find the cube root of 13824 by prime factorisation method.

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Example 7 Find the cube root of 13824 by prime factorisation method. We see that, 13824 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 Since 2 & 3 occur in triplets ∴ 13824 is a perfect cube Cube root of 13824 = 2 × 2 × 2 × 3 = 4 × 6 = 24

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