'Virtual addressing page table if we use 32-bit, 64-bit, and 128-bit

Hi i'm having a little bit of trouble here concerning a exercice.

Calculate the number of entries in a page table if we use 32-bit, 64-bit, and 128-bit virtual addressing respectively and the size of a page is 4 KB.

Considering that 2^12 = 4Ko

32 - 12 = 20 then it will be 2^20

How can I apply this for a virtual addressing of 64 bits and 128 bits ?

Thank you :)

architecturevirtualaddressing


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