125x25x64=125x8x25x4x2=1000x100x2=200000
125x25x64=125*8 *25*4*2=1000*100*2=200000
125x25x64=5x25x25x4x4x4=(25x4)x(25x4)x4x5
125*8 *25*4 =1000*100=100000
