The Size of Integers That a Computer Can tTke

How large is an integer that a computer can take? Certainly it depends on what software that you are going to use. For instance, the largest unsigned long integer in C++ is 1 2 − (see [1]), while it is 1 2 − in C# (see [2]). If a variable in C++ is declared to be of unsigned long integer type, it has the maximum value of 4,294,967,295. It will result in an integer overflow when a program in C++ is to compute an integer value larger than that maximum value unless your algorithm takes a special care. Algorithms discussed in [3] will be able to deal with very large integers. In this note, we will discuss the sizes of integers that a computer can deal within a given compiler with different algorithms.