Alphabet, arithmetic, mathematics and a numerical system.

The English alphabet has A,a-Z,z

Greek alphabet... Alpha - Omega

Also other symbols other languages and alphabetical systems that contribute to the mathematics

I remember early learning to establish a foundation, the function of simple arithmetic is add subtract multiply and divide. The only complexity was the different forms that mean the same, and the larger cluster combinations of the ten basic numerical characters and it was all taught the basic base 10.

The numerical system is the ultimate that crosses over the whole communication barrier

0,1,2,3,4,5,6,7,8,9

Yes there is ten characters, not symbols, but they are incomplete, e.g.

Yes any combination, which is commonly base 10, any value of any cluster are recognized by every Human no matter the level of education.

Primitive man struck a line which represented a quantity one .

What was the rep. for a zero, an absent 1, a crossed 1 or an X ? I do not know. Can you imagine trying to represent the quantity of 1000 by just using the scratched 1. The development of the ten numerical characters made that more efficient.

Base One, either it is there or not there may be the premium of simplicity.

But as numbers sit alone represent quantity, without unit purpose or without definition, by using any of the alphabets, are meaningless, quantity of what?

All in all, I think the question is a bit misleading.