Question

$\sqrt[8]{256}$

Answer 1

$\Large\boxed{\begin{array}{l}\begin{array}{c|c}\sf256&\sf2\\\sf128&\sf2\\\sf64&\sf2\\\sf32&\sf2\\\sf16&\sf2\\\sf8&\sf2\\\sf4&\sf2\\\sf2&\sf2\\\sf1\end{array}\\\sf 256=2^8\\\sf\sqrt[\sf8]{\sf256}=\sqrt[\sf8]{\sf2^8}=2\end{array}}$