the unit digit in the product ( 624 * 708 * 913 * 463 ) is :
"explanation : unit digit in the given product = unit digit in ( 4 * 8 * 3 * 3 ) = 8 answer : d"
subtract(multiply(multiply(multiply(624, 708), 913), 463), subtract(multiply(multiply(multiply(624, 708), 913), 463), add(const_4, const_4)))