Question

Test whether the numbers $343,516,729,8000$ are perfect cubes or not

Answer 1

$343$ is a perfect cube as it is a cube of $7$

$516$ is not a perfect cube as it is not a cube of any natural number.

$729$ is a perfect cube as it is a cube cube of $9$

$8000$ is a perfect cube as it is a cube cube of $20$

So, $343,729,$and $8000$are perfect cubes but $516$ is not a perfect cube.