Well, k^4 = 2^4*2, right? So each k must have a factor of 2 already. Where would the fifth 2 come from? From one of the k as well. So each k has TWO factors of 2 or one factor of 4.
Well, k^4 = 2^4*2, right? So each k must have a factor of 2 already. Where would the fifth 2 come from? From one of the k as well. So each k has TWO factors of 2 or one factor of 4.