python tutorial - Python int | What is the maximum possible value of an integer in Python - learn python - python programming




Consider below Python program.

python - Sample - python code :

# A Python program to demonstrate that we can store
# large numbers in Python
 
x = 10000000000000000000000000000000000000000000;
x = x + 1
print (x)
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python tutorial - Output :

10000000000000000000000000000000000000000001

In Python, value of an integer is not restricted by the number of bits and can expand to the limit of the available memory (Sources : this and this). Thus we never need any special arrangement for storing large numbers (Imagine doing above arithmetic in C/C++).

As a side note, in Python 3, there is only one type “int” for all type of integers. In Python 2.7. there are two separate types “int” (which is 32 bit) and “long int” that is same as “int” of Python 3.x, i.e., can store arbitrarily large numbers.

python - Sample - python code :

# A Python program to show that there are two types in
# Python 2.7 : int and long int
# And in Python 3 there is only one type : int
 
x = 10
print(type(x))
 
x = 10000000000000000000000000000000000000000000
print(type(x))
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Output in Python 2.7 :

<type 'int'>
<type 'long'>

Output in Python 3 :

<type 'int'>
<type 'int'>

We may want to try more interesting programs like below :

python - Sample - python code :

# Printing 100 raise to power 100
print(100**100)
click below button to copy the code. By Python tutorial team

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