since you haven't set any restrictions I'm going to assume what I'm about to do is legal. my guess is: "the number represented by the pair of symbols "10"." all of the numbers represented by "10" for example in a base 2 (binary) number system "10" is a representation of the base 10 (decimal) number 2 in a base 3 (ternary) number system "10" is a representation of the decimal number 3 in a base 4 (Quaternary) number system "10" is a representation of the decimal number 4 ... in base infinity number system "10" is a representation of the decimal number infinity get the Idea? so unless your number is irrational IE PI or e or the number 1, I expect a code