25X32X125=25*(4*8)*125=(25*4)*(8*125)=100*1000=100000
25×32×125=25×4×8×125=(25×4)×(8×125)=100×1000=100000
25X32X125(=25X(4X8)X125=(25X4)X(8X125)=100X1000=100000