$${root3}{\left({\mathtt{8\,000}}\right)} = {\mathtt{20}}$$
Remember that a cube number is a number that is multiplied by itself 3 times. In this case, the answer is 20 because:
$${\mathtt{20}}{\mathtt{\,\times\,}}{\mathtt{20}}{\mathtt{\,\times\,}}{\mathtt{20}} = {\mathtt{8\,000}}$$
.$${root3}{\left({\mathtt{8\,000}}\right)} = {\mathtt{20}}$$
Remember that a cube number is a number that is multiplied by itself 3 times. In this case, the answer is 20 because:
$${\mathtt{20}}{\mathtt{\,\times\,}}{\mathtt{20}}{\mathtt{\,\times\,}}{\mathtt{20}} = {\mathtt{8\,000}}$$