Ok I have a different problem: Get 798, 478, 321 Using 65, 8,7,5,4,2,1 U have to use all of the given numbers but only once (for each of 798, 478, 321). you can do whatever u want, divide,multiply,add,substract... I just generated these numbers randomly. So I even dont know if it works but it should. If it is not possible to get an exact match, just find the solution for the nearest of it. Lets see how many different ways people come with