I am wondering what an X bit number is. Such as a 1024 bit number, how is that generated? And how can I create a 1024 or 2048 or even a 4096 bit prime number? I am trying to generate a 1024, 2048, or a 4096 bit prime number. How can I do this? I tried creating a program in C/C++ that started at 13 and multiplied that by 2 and then added 1 over and over but it doesn't go very high. Can someone define a whatever bit number?