Question 365963
Take the cube root of each number. 
To the power of ({{{1/3}}}) on your calculator.
{{{root(3,(46656))=36}}}
{{{root(3,(13825))=24.00058}}}<-- Not a perfect cube, {{{13824}}} is.
{{{root(3,(3375))=15}}}
{{{root(3,(74088))=42}}}