Maths / Cube and Cube Roots / Perfect Cube

QUESTION

Which one of the following numbers is not a complete cube? 64, 216, 343, 256

 OPTIONS A. 64 B. 216 C. 243 D. 256
Right Option : D

EXPLANATION
Explain TypeExplanation Content
Text

64=$4^3;216=6^3,343=7^3,$

$256=\overline{2X2X2}X\overline {2X2X2}X2X2$

it is clear that 256 is not a perfect cube.

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