-- this is going to be some multiple of 4 plus something else, so to do that, well you could just do that by sight 7320 is dividable by 4, you can verify that by hand and then you have one left over also this is going to be i to the 7320 times i to the first power, this is a multiple of 4 this right here is just a multiple of 4, I know that because any 100 is a multiple of 4, any 1000 is a multiple of 4 and any 100 is a multiple of 4 and the 20 is a multiple of 4 and so this right over here simplified to 1... sorry, that's not ??? to the ith power either the first power, 7321 is 7320 plus 1 and so this part right over here is going to simplify 1 and its going to be left with i to the first power or just i.