Mark has a container in the shape of a cube. He uses 64 cubes with sides lengths of 1 inch to completely fill the container.
What is the edge length of the container?

Hint: The volume of the container is 64 cubic inches.

Include in Your Answer:
The formula to find the volume of a cube.
The calculations showing how to find the length of one side (edge) of the cube.
Your final answer written as ___ inches.