Q97 of 142 Page 88

Using prime factorisation, find the cube roots of

(a) 512 (b) 2197

(a) Given: 512

Factors of 512 = 2 × 2× 2× 2× 2× 2× 2× 2× 2


Then cube roots of 512 = 2× 2× 2


= 8


(b) Given: 2197


Factors of 2197 = 13 × 13 × 13


Then cube roots of 2197 = 13


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