Q1 of 11 Page 18

Find the cube root of the following numbers.

8000

First find the factor of 8000


8000 = 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 5


For finding the cube root, we pair the prime factors in 3’s.


= (2 × 2 × 5)3


= (2 × 10)3


= 203


i.e. cube root of 8000 = (8000)1/3 = (203)1/3 = 20 (answer).


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