Restklassenringe (Z)/mod 5/Multiplikationstafel

${}\cdot$	${}0$	${}1$	${}2$	${}3$	${}4$
${}0$	${}0$	${}0$	${}0$	${}0$	${}0$
${}1$	${}0$	${}1$	${}2$	${}3$	${}4$
${}2$	${}0$	${}2$	${}4$	${}1$	${}3$
${}3$	${}0$	${}3$	${}1$	${}4$	${}2$
${}4$	${}0$	${}4$	${}3$	${}2$	${}1$