what is the least whole number that should be added to 625573 if it is to be divisible by 3 ?
a number is divisible by 3 if the sum of the digits is divisible by 3 . . here , 6 + 2 + 5 + 5 + 7 + 3 = 28 , the next multiple of 3 is 30 . 2 must be added to 625574 to make it divisible by 3 e
subtract(add(subtract(625573, const_1), 3), 625573)