Restklassenringe (Z)/mod 16/Multiplikationstafel

$\begin{array}{ccccccccccccccccc}*& 0& 1& 2& 3& 4& 5& 6& 7& 8& 9& 10& 11& 12& 13& 14& 15\\ 0& 0& 0& 0& 0& 0& 0& 0& 0& 0& 0& 0& 0& 0& 0& 0& 0\\ 1& 0& 1& 2& 3& 4& 5& 6& 7& 8& 9& 10& 11& 12& 13& 14& 15\\ 2& 0& 2& 4& 6& 8& 10& 12& 14& 0& 2& 4& 6& 8& 10& 12& 14\\ 3& 0& 3& 6& 9& 12& 15& 2& 5& 8& 11& 14& 1& 4& 7& 10& 13\\ 4& 0& 4& 8& 12& 0& 4& 8& 12& 0& 4& 8& 12& 0& 4& 8& 12\\ 5& 0& 5& 10& 15& 4& 9& 14& 3& 8& 13& 2& 7& 12& 1& 6& 11\\ 6& 0& 6& 12& 2& 8& 14& 4& 10& 0& 6& 12& 2& 8& 14& 4& 10\\ 7& 0& 7& 14& 5& 12& 3& 10& 1& 8& 15& 6& 13& 4& 11& 2& 9\\ 8& 0& 8& 0& 8& 0& 8& 0& 8& 0& 8& 0& 8& 0& 8& 0& 8\\ 9& 0& 9& 2& 11& 4& 13& 6& 15& 8& 1& 10& 3& 12& 5& 14& 7\\ 10& 0& 10& 4& 14& 8& 2& 12& 6& 0& 10& 4& 14& 8& 2& 12& 6\\ 11& 0& 11& 6& 1& 12& 7& 2& 13& 8& 3& 14& 9& 4& 15& 10& 5\\ 12& 0& 12& 8& 4& 0& 12& 8& 4& 0& 12& 8& 4& 0& 12& 8& 4\\ 13& 0& 13& 10& 7& 4& 1& 14& 11& 8& 5& 2& 15& 12& 9& 6& 3\\ 14& 0& 14& 12& 10& 8& 6& 4& 2& 0& 14& 12& 10& 8& 6& 4& 2\\ 15& 0& 15& 14& 13& 12& 11& 10& 9& 8& 7& 6& 5& 4& 3& 2& 1\end{array}$