A cube; how many bricks is 190 700

A cube; how many bricks is 190 700

First calculate how big a brick is. If it is a cuboid brick, it is length by width by height
And then one cube is removed to get how many pieces there are,
Of course, there will be gaps between bricks, and each brick may not have the same specification,
So there will be errors, the actual number of blocks will be less than the calculated