* note that I meant fields in the abstract mathematical sense, notphysical (i.e. electric) fields! *
Finding the determinant of a matrix in GF(28)
I want to know if it is using mod 256 or mod 255 in the field of GF(28)
The Attempt at a Solution
I found the determinant of a matrix no problem. Everything in between is all good. What I want to know is that in the field of GF(28), am I taking the number mod 255 or mod 256?
I know that there are a total of 256 elements in the field, but I'm just not sure which mod to take for the final answer, since it is a negative determinant.