A rectangular prism with a volume of 3 cubic units is filled with cubes with side lengths of 1/4 unitHow many 1/4 unit cubes does it take to fill the prism?

I believe the answer is 12 because it takes 4, 1/4 unit cube to make 1 cubic unit so to make 3 cubic units you need 12, 1/4 unit cubes if that makes any sense. :) Please make Brainliest if this helped.