Maths / Cube and Cube Roots / Cube Root by Prime Factorisation

QUESTION

What is the least number by which 8640 is divided, the quotient is a complete cube number?

 OPTIONS A. 6 B. 7 C. 5 D. 8
Right Option : C

EXPLANATION
Explain TypeExplanation Content
Text

8640=$\overline{2X2X2}X\overline{2X2X2}X\overline{3X3X3}X5$

It is clear that if 8640 is divided by 5,the quotient will be a perfect cube.

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