How Many Values Can an Integer Data Type Take On?


Angela Bailey

In the world of programming, data types play a crucial role in determining the kind of data that can be stored and manipulated in a program. One commonly used data type is the integer, which represents whole numbers without any fractional or decimal parts.

What is an Integer?

An integer is a data type that can take on values such as -3, -2, -1, 0, 1, 2, 3, and so on. It includes both positive and negative numbers as well as zero.

Range of Values

The range of values that an integer data type can take on depends on its size or bit width. In most programming languages, there are different sizes of integer data types available to choose from. The most common ones are:

  • Byte: This is the smallest integer data type typically represented by 8 bits. It can store values ranging from -128 to 127.
  • Short: This data type is usually represented by 16 bits and can store values ranging from -32,768 to 32,767.
  • Int: An int is commonly represented by 32 bits and has a wider range of values from -2,147,483,648 to 2,147,483,647.
  • Long: The long data type usually requires more memory as it is represented by 64 bits. It has an even wider range from approximately -9 quintillion to +9 quintillion.

The exact range may vary slightly depending on the programming language being used. However, these ranges cover the majority of cases across different languages.

Overflow and Underflow

It’s important to note that when an integer data type exceeds its maximum value or goes below its minimum value, it can result in an overflow or underflow situation respectively. In such cases, the value may wrap around to the opposite end of the range. For example, if you add 1 to the maximum value of an integer data type, it will wrap around to the minimum value.

Overflow and underflow can lead to unexpected results in a program and should be avoided by careful consideration of the range of values that an integer data type can handle.


An integer data type can take on a range of values depending on its size. Understanding the limitations and range of values that an integer can handle is crucial for writing robust and error-free programs.

Remember to choose the appropriate size of the integer data type based on your program’s requirements and avoid potential issues related to overflow and underflow.

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