43x1=43 43x2=86 43x3=129 43x4=172 43x5=215 43x6=258 43x7=301 43x8=344 43x9=387 43x10=430 43x11=484 43x12=516
Assuming all faces need to be painted, the question can be written as "how many faces on 43 cubes." There are 6 faces on each cube. Thus the answer can be got from the multiplication 43x6. Doing this gives us 258, so the number of faces that would need to be painted is 258.