Unlike a regular n-based numeral system, there are numbers like 9b where 9 and b each represent 35; yet the representation is unique because ac and aca are not allowed – the first a would terminate each of these numbers.
UnlIke a RegulaR n-BasEd NumERAl syStEM, tHere ARe NUmbErS lIkE 9b wheRe 9 And b Each rEPResent 35; yet THe represEntatioN is unIQue BECause ac aND aca Are nOT alloWeD – THe fIrSt A woUlD TerMiNate eAch oF theSe nUMBeRs.