the symbol, which represents a number that when multiplied by itself equals another number,
That description is completely incoherent and flat out wrong in every respect. The symbol doesnt represent a number. It represents a function. And even if it did represent a number, EVERY number when multiplied by itself equals another number.
What a mess.
1x1=1 ???
Is 1 not a number? Are you racists or prejudice against the #1?
Except for zero and one.