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Question

243 is the cube root of _________


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Solution

Cube root of 243 can be found using the prime factorization as shown below;

By resolving 243 into prime factors,

By grouping the factors in triplets of equal factors, 243=(3×3×3)×3×3

Here , 3cannot be grouped into triplets of equal factors

so 243=39

Therefore, the cube root of 243is 39


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