Show that if m is a number having primitive roots then the product of the positive intgeters less than or equal to m and relatively prime to it is congruent to -1 (mod m)
Show that if m is a number having primitive roots then the product of the positive intgeters less than or equal to m and relatively prime to it is congruent to -1 (mod m)
What does it mean that "a number has primitive roots"??