Hi Phillip,

Just pick any number that is bigger than the square of the biggest number you ever plan to use. In computer design, you would decide on the word size based on economics and desired characteristics of the machine. You can always extend this limitation with software by defining numbers as concatenations of words.

The largest integer need never be a limitation because if it is, you can always define a larger one. No matter how many times you do this, and no matter how large Q ever gets, it will still always be finite and everything I said still holds.

Warm Regards,

Paul