You can check the maximum integer size in Python using the `maxsize`

property of the `sys`

module.

In this article, you'll learn about the maximum integer size in Python. You'll also see the differences in Python 2 and Python 3.

The maximum value of an integer shouldn't bother you. With the current version of Python, the `int`

data type has the capacity to hold very large integer values.

## What Is the Maximum Integer Size in Python?

In Python 2, you can check the max integer size using the `sys`

module's `maxint`

property.

Here's an example:

`import sysprint(sys.maxint)# 9223372036854775807`

Python 2 has a built-in data type called `long`

which stores integer values larger than what `int`

can handle.

You can do the same thing for Python 3 using `maxsize`

:

`import sysprint(sys.maxsize)# 9223372036854775807`

Note that the value in the code above is not the maximum capacity of the `int`

data type in the current version of Python.

If you multiply that number (9223372036854775807) by a very large number in Python 2, `long`

will be returned.

On the other hand, Python 3 can handle the operation:

`import sysprint(sys.maxsize * 7809356576809509573609874689576897365487536545894358723468)# 72028601076372765770200707816364342373431783018070841859646251155447849538676`

You can perform operation with large integers values in Python without worrying about reaching the max value.

The only limitation to using these large values is the available memory in the systems where they're being used.

## Summary

In this article, you have learned about the max integer size in Python. You have also seen some code examples that showed the maximum integer size in Python 2 and Python 3.

With modern Python, you don't have to worry about reaching a maximum integer size. Just make sure you have enough memory to handle the computation of very large integer operations, and you're good to go.

Happy coding!

ADVERTISEMENT

ADVERTISEMENT

ihechikara.com

If you read this far, tweet to the author to show them you care.

Learn to code for free. freeCodeCamp's open source curriculum has helped more than 40,000 people get jobs as developers. Get started

## FAQs

### Int Max in Python – Maximum Integer Size? ›

These represent numbers in the range **-2147483648 through 2147483647**. (The range may be larger on machines with a larger natural word size, but not smaller.)

**What is the size of integer Max_value? ›**

MAX_VALUE is a number in the Java Integer сlass of java. lang package. It is the maximum possible Integer number that can be represented in **32 bits**. Its exact value is 2147483647 i.e. 231-1.

**What is the 32-bit integer limit in Python? ›**

A 32-bit integer limit allows for **4,294,967,296 ( 2 3 2 ) pieces of data**. If storing signed integers, this would range from -2,147,483,648 to 2,147,483,647.

**What is the size of an integer in Python? ›**

To be safe, Python allocates a fixed number of bytes of space in memory for each variable of a normal integer type, which is known as int in Python. Typically, an integer occupies **four bytes, or 32 bits**.

**How large can an integer be in Python 3? ›**

Integers in Python 3 are of **unlimited size**. Python 2 has two integer types - int and long. There is no 'long integer' in Python 3 anymore. float (floating point real values) − Also called floats, they represent real numbers and are written with a decimal point dividing the integer and the fractional parts.

**Why is 2,147,483,647 the max integer? ›**

The number 2,147,483,647 (or hexadecimal 7FFFFFFF_{16}) is the **maximum positive value for a 32-bit signed binary integer in computing**. It is therefore the maximum value for variables declared as integers (e.g., as int ) in many programming languages.

**What is the max int with 8 bytes? ›**

The SQL INT8 data type and the BIG INT data type can hold integer values in the range -9,223,372,036,854,775,807 - 9,223,372,036,854,775,807 [or -(2 ^{63}-1) - 2 ^{63}-1].

**How large can an integer in Python be in 32 and 64 bit? ›**

It has a **minimum value of -2,147,483,648 and a maximum value of 2,147,483,647 (inclusive)**. A 32-bit unsigned integer. It has a minimum value of 0 and a maximum value of 4,294,967,295 (inclusive). A double-precision 64-bit IEEE 754 floating point.

**What is the integer limit for 4,294,967,295? ›**

The number 4,294,967,295, equivalent to the hexadecimal value FFFF,FFFF_{16}, is the maximum value for a **32-bit unsigned integer** in computing.

**Why is the 32-bit integer limit 2 31? ›**

In a SIGNED 32-bit number, one of the 32 bits is used to indicate whether the number is negative or not. This reduces the number of values by a factor of 2¹, or by half. This leaves 2³¹, which is about 2.1 billion. This means the range is now about −2.1 billion to 2.1 billion.

### Is there a limit for integer in Python? ›

In Python 3, the int type has no max limit. You can handle values as large as the available memory allows. Python 2 has two integer types, int and long , while Python 3 only has int .

**What is standard integer size? ›**

The size of a signed int or unsigned int item is the standard size of an integer on a particular machine. For example, **in 16-bit operating systems, the int type is usually 16 bits, or 2 bytes**. In 32-bit operating systems, the int type is usually 32 bits, or 4 bytes.

**What is the size of int integer? ›**

Type Name | 32–bit Size | 64–bit Size |
---|---|---|

char | 1 byte | 1 byte |

short | 2 bytes | 2 bytes |

int | 4 bytes | 4 bytes |

long | 4 bytes | 8 bytes |

**What is the largest value possible in Python? ›**

value, which corresponds to 18,446,744,073,709,551,615 for the unsigned data type and ranges from **-9,223,372,036,854,775,807 to 9,223,372,036,854,775,807 in the signed version**. if we're running it on a 32-bit machine or higher.

**How big can a long integer be? ›**

Long (long integer) variables are stored as signed 32-bit (4-byte) numbers ranging in value from **-2,147,483,648 to 2,147,483,647**.

**How do you use 64-bit integers in Python? ›**

**Similarly, if you want to use 16 bits, 32 bits, and 64 bits to store integers, the ranges would be:**

- 16-bits ~ [-2
^{15}, 2^{15}– 1] = [ -32,768 , 32,767 ] - 32-bits ~ [-2
^{31}, 2^{31}– 1] = [- 2,147,483,648 , 2,147,483,647 ] - 64-bits ~ [-2
^{63}, 2^{63}– 1] = [ -9,223,372,036,854,775,808 , 9,223,372,036,854,775,807 ]

**Which data type allows whole numbers between 2147483648 and 2,147,483,647? ›**

The INTEGER data type stores whole numbers that range from -2,147,483,647 to 2,147,483,647 for 9 or 10 digits of precision. The number 2,147,483,648 is a reserved value and cannot be used.

**What is the 1024 bit integer limit? ›**

Such an integer could be encoded as a sequence of 1024 bits, i.e. **128 bytes**. What is the maximum length of integer? 2,147,483,647 The number 2,147,483,647 (or hexadecimal 7FFFFFFF16) is the maximum ...

**What is the largest integer? ›**

**There is no such largest Integer**.

**Why is 65535 the limit? ›**

65535 is the largest number that can be held in a 16 bit unsigned integer. **As this is the size of the port field in TCP/UDP then that limits the range of port numbers**.

### What is 32-bit vs 64-bit integer? ›

**A 32-bit number can store 2^32 values, or 4,294,967,296.** **Meanwhile, a 64-bit number has 2^64 possible values, or a staggering 18,446,744,073,709,551,616**. That's over 18.4 quintillion, which is so large that it's difficult to comprehend.

**Which is 18446744073709551615? ›**

This number mentioned, 18,446,744,073,709,551,615 , is actually **2^64 − 1** . The important thing here is that 2^64-1 is essentially 0-based 2^64 . The first digit of an unsigned integer is 0 , not 1 .

**Does Python support 128-bit integers? ›**

No current architecture, no machine that Python runs on, supports 128-bit native integer arithmetic. So no machine would require or benefit from having 128-bit integers 16-byte aligned. Just use that user defined struct and you'll be fine.

**What is the maximum 128-bit integer? ›**

128-bit refers to one hundred twenty-eight binary (0 or 1) units of integer data. This allows for up to **340,282,366,920,938,463,463,374,607,431,768,211,456 combinations of values**.

**How do you find the largest integer in Python? ›**

**Use Python's min() and max()** to find smallest and largest values in your data. Call min() and max() with a single iterable or with any number of regular arguments. Use min() and max() with strings and dictionaries.

**Can 32-bit integer store 10 billion? ›**

**32-bit computers can only store signed integers up to 2 ^{31} - 1**. This is why we have run out of IPv4 addresses and have entered the 64-bit era. However, the number 2

^{31}- 1 (2,147,483,647) is not as large as the number 1 trillion (1,000,000,000,000) which I seem to be able to display fine without my machine crashing.

**What is the limit of 65536 bit integer? ›**

65536 (2^{16}) is the number of different values representable in a number of 16 binary digits (or bits), also known as an unsigned short integer in many computer programming systems. A 65,536-bit integer can represent up to **2 ^{65536} (2.00352993...**

**×10**.

^{19,728}) values**What is the 32768 bit integer limit? ›**

**The maximum value in binary number system using 15 bits** can be 32768 (or 2^15). So an integer can store value from -32768 to +32767. And this becomes from 0 to 65536 for unsigned integers, due to the reason that total usable bits become 16.

**Why is Max 2.147 billion on games? ›**

The number 2,147,483,647 is also the maximum value for a 32-bit signed integer in computing. It is therefore the maximum value for variables declared as int in many programming languages running on popular computers, and the maximum possible score, money etc. for many video games.

**How do I check if a number is 32-bit in Python? ›**

Use the **python -c "import sys; print(sys.** **maxsize > 2**32)" command** to check if Python is running as 32-bit or 64-bit.

### What is the max value of int32? ›

The value of this constant is 2,147,483,647; that is, **hexadecimal 0x7FFFFFFF**.

**What is a long integer in Python? ›**

Long: **Integer type with unlimited length**. In python 2.2 and later, Ints are automatically turned into long ints when they overflow. Dropped since Python 3.0, use int type instead. Float: This is a binary floating point number.

**What is Python limit? ›**

limits is **a python library to perform rate limiting with commonly used storage backends** (Redis, Memcached, MongoDB & Etcd). Sponsored by Zuplo - fully-managed, programmable API Management platform.

**What is Int64 Python? ›**

You will often see the data type Int64 in Python which stands for **64 bit integer**. The 64 simply refers to the memory allocated to store data in each cell which effectively relates to how many digits it can store in each “cell”.

**How big is a 64-bit integer? ›**

The maximum (unsigned) 64-bit integer is 18446744073709551615 . This is (2^64)-1, which is essentially the square of (2^32)-1, which is "about" 4 billion.

**Is integer size 2 or 4? ›**

The integer data type is further divided into short, int, and long data types. The short data type takes 2 bytes of storage space; int takes 2 or 4 bytes, and long takes 8 bytes in 64-bit and 4 bytes in the 32-bit operating system.

**What is the 7 bit integer limit? ›**

The largest unsigned integer in 7 bits would be 2^7-1= **127**.

**What is integer data type in Python? ›**

Int, or integer, is **a whole number, positive or negative, without decimals, of unlimited length**.

**What is the max size Python string? ›**

Maximum length of a string is platform dependent and depends upon address space and/or RAM. The maxsize constant defined in sys module returns **263-1 on 64 bit system**.

**What is the maximum value of bytes in Python? ›**

8 bytes = 8 * 8 bits = **64 bits**. So a 64 digit binary number. Or, the 64-bit integer limit (2 ^ 63 - 1 in case of a long long).

### What is the limit of int vs long? ›

Key Differences Between int and long

In Java, **the range of type int is from –2,147,483,648 to 2,147,483,647 whereas, the range of type long is from –9,223,372,036,854,775,808 to 9,223,372,036,854,775,807** which is very much greater than type int. The keyword used to the declare a variable of the type int is “int”.

**What are integers of unlimited size? ›**

**long (long integers )** − Also called longs, they are integers of unlimited size, written like integers and followed by an uppercase or lowercase L.

**What is bigger than integer? ›**

If you need to hold an integer larger than the Integer data type can hold, you can use the **Long data type** instead. Long variables can hold numbers from -9,223,372,036,854,775,808 through 9,223,372,036,854,775,807. Operations with Long are slightly slower than with Integer .

**Are integers limited to 64-bit precision Python? ›**

Generally, In languages like C/C++, the precision of integers is limited to 64-bit, but **Python has built-in support for Arbitrary-precision integers**. Since Python 3 there is no longer simple integer type, and all integers are represented as a bignum.

**How do you set a max value in Python? ›**

**Python max() Function**

- ExampleGet your own Python Server. Return the largest number: x = max(5, 10)
- Example. Return the name with the highest value, ordered alphabetically: x = max("Mike", "John", "Vicky") Try it Yourself »
- Example. Return the item in a tuple with the highest value: a = (1, 5, 3, 9) x = max(a)

**How do you store more than 64-bit integers in Python? ›**

To store larger numbers, **an additional "digit" is added to the array**. Loosely speaking, this is the same mechanism as one adds digits when writing out decimal numbers – using 1-digit is enough up to 9, 2-digit up to 99, and so on.

**What is integer MAX_VALUE in bytes? ›**

Integer. MAX_VALUE represents the maximum positive integer value that can be represented in **32 bits** (i.e., 2147483647 ). This means that no number of type Integer that is greater than 2147483647 can exist in Java.

**What is the integer MAX_VALUE 10? ›**

MAX_VALUE / 10 ( 214748364 ). **If it is greater, the reverse integer does not exist**.

**What is long MAX_VALUE? ›**

static long MAX_VALUE − This is **a constant holding the maximum value a long can have**, 2^{63}-1. static long MIN_VALUE − This is a constant holding the minimum value a long can have, -2^{63}. static int SIZE − This is the number of bits used to represent a long value in two's complement binary form.

**What is the integer max value in bytes? ›**

Size | Signed Values | Unsigned Values |
---|---|---|

1-byte | -128 to 127 | 0 to 255 |

2-byte | -32,768 to 32,767 | 0 to 65,535 |

3-byte | -8,388,608 to 8,388,607 | 0 to 16,777,215 |

4-byte | -2,147,483,648 to 2,147,483,647 | 0 to 4,294,967,295 |

### What is maximum integer value in Python? ›

If you multiply that number (**9223372036854775807**) by a very large number in Python 2, long will be returned. You can perform operation with large integers values in Python without worrying about reaching the max value.

**What is the 128 bit integer limit? ›**

128-bit refers to one hundred twenty-eight binary (0 or 1) units of integer data. This allows for up to **340,282,366,920,938,463,463,374,607,431,768,211,456 combinations of values**.

**What happens if you add 1 to integer MAX_VALUE? ›**

Whenever you add 1 to the largest java Integer, which has a bit sign of 0(Zero), then **its bit sign becomes 1 and the number becomes negative**.

**What is the number limit for integer? ›**

The INTEGER data type stores whole numbers that range from **-2,147,483,647 to 2,147,483,647** for 9 or 10 digits of precision. The number 2,147,483,648 is a reserved value and cannot be used. The INTEGER value is stored as a signed binary integer and is typically used to store counts, quantities, and so on.

**What happens when you add 2 to Intmax? ›**

Because the result of adding 2 ints with a value of MaxValue together and putting the result into an int **overflows what the 32 bits in an int can hold**. The result is what you see: -2 due to the resulting bit pattern and the high (sign) bit of the int now being set (called "wrap around").

**What happens if you go over the integer limit? ›**

An integer overflow **can cause the value to wrap and become negative**, which violates the program's assumption and may lead to unexpected behavior (for example, 8-bit integer addition of 127 + 1 results in −128, a two's complement of 128).

**What is the max value of int vs long? ›**

While integers can be as large as 2,147,483,647 and as low as -2,147,483,648 (stored as 32 bits), a long integer has a minimum value of -9,223,372,036,854,775,808 and a maximum value of **9,223,372,036,854,775,807 (stored as 64 bits)**.

**What is double MAX_VALUE? ›**

public const double MaxValue = 1.7976931348623157E+308; **Syntax to get highest value of Double**.

**What is the difference between number MAX_VALUE and number Max_safe_integer? ›**

**MAX_SAFE_INTEGER is the maximum integer that can be safely represented in that format**, meaning that all the numbers below that value (and above MIN_SAFE_INTEGER) can be represented as integers. MAX_VALUE comes from 2^1023 (11 bits mantissa minus mantissa sign), thats about 10^308.

**What is the max 24 bit integer? ›**

The range of unsigned integers that can be represented in 24 bits is 0 to 16,777,215 (FFFFFF16 in hexadecimal). The range of signed integers that can be represented in 24 bits is **−8,388,608 to 8,388,607**.

### What is the 1024 integer limit? ›

Such an integer could be encoded as a sequence of 1024 bits, i.e. **128 bytes**. What is the maximum length of integer? 2,147,483,647 The number 2,147,483,647 (or hexadecimal 7FFFFFFF16) is the maximum ...

**What is the max 16 integer value? ›**

A 16-bit integer can store **2 ^{16} (or 65,536)** distinct values. In an unsigned representation, these values are the integers between 0 and 65,535; using two's complement, possible values range from −32,768 to 32,767. Hence, a processor with 16-bit memory addresses can directly access 64 KB of byte-addressable memory.