Q.note : #NO DEBAT !!
783³ × 496³
= ( 783 × 783 × 783 ) × ( 496 × 496 × 496 )
= ( 613.089 × 783 ) × ( 246.016 × 496 )
= 480.048.687 × 122.023.936
= 58.577.430.259.372.032
jwb :
783³ × 396³
= ( 783 × 783 × 783 ) × ( 396 × 396 × 396 )
= ( 480.048.687 ) + ( 62.009.136 )
= 542.057.832