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Question

Find the cubic root of the following number by prime factorisation method:
27000

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Solution

On prime factorising, we get,

27000=2×2×2×5×5×5×3×3×3

=23×53×33.


Then, cube root of 27000 is:

327000=333×53×23=3×5×2=30.


Therefore, 30 is the required solution.


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