Question 1072091
A right rectangular prism has edge lengths 9", 11.0", and 6.5".
 How many cubes with edge lengths 3.5" would be needed to fill the prism?
{{{((9*11*6.5))/3.5^3}}} = 15 cubes, however this is not true because the dimensions are not multiples of 3.5
Actually the no. of cubes is only one layer; 2 by 3 or 6 cubes can be contained inside the prism.