Also known as base 10, its set is {0,1,2,3,4,5,6,7,8,9}

Also known as base 2, its set is {0,1}

Also known as base 8, its set is {0,1,2,3,4,5,6,7}

Also known as base 10, its set is {0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F}