Hi,
In my humble opinion, numbers are not a thing in itself; it rather represents an object or an idea. For example one apple,two apples etc…, hence you can then add, subtract etc…. but since the item that it represents is an object and the object is finite, therefore, a number is no more than a concept which is relevant to the object. Once the object disappears, so do the numbers, thereby leaving numbers as a finite thing. On the other hand, G-d, Who is not a mortal, nor has any dimensions,is the epitome of Oneness that we have no concept of, and is the only infinite “being”.
If I am wrong then I hope to be corrected.
Dave