Standing alone. By itself. On a precarious base. Likely to fall over at any moment and become an underscore, or perhaps a dash.
What are the possibilities for a lonely one? Is it just a simple vertical line, signifying the lowest whole number? Ignored and passed over as we and our schoolchildren strive for the highest value possible? Is it best considered only as the first of three digits in a perfect score?
Not likely. Not in my business, which is really publishing, not just math.
Typographers certainly give the one plenty of attention. Look at all the variations! These are all the same size, I simply changed the font. These are the versions of a one that I have on my computer.
Can we take another look, you ask? Certainly.