Python | math.gcd() function (original) (raw)

Last Updated : 20 Feb, 2023

In Python, math module contains a number of mathematical operations, which can be performed with ease using the module. math.gcd() function compute the greatest common divisor of 2 numbers mentioned in its arguments.

Syntax: math.gcd(x, y) Parameter: x : Non-negative integer whose gcd has to be computed. y : Non-negative integer whose gcd has to be computed. Returns: An absolute/positive integer value after calculating the GCD of given parameters x and y. Exceptions : When Both x and y are 0, function returns 0, If any number is a character, Type error is raised.

Time Complexity: O(1)

Auxiliary Space: O(1)

Code #1:

Python3 `

Python code to demonstrate the working of gcd()

importing "math" for mathematical operations

import math

prints 12

print ("The gcd of 60 and 48 is : ", end ="") print (math.gcd(60, 48))

`

Output:

The gcd of 60 and 48 is : 12

Code #2:

Python3 `

Python code to demonstrate the working of gcd()

importing "math" for mathematical operations

import math

prints gcd of x, y

print ("math.gcd(44, 12) : ", math.gcd(44, 12)) print ("math.gcd(69, 23) : ", math.gcd(65, 45))

`

Output:

math.gcd(44, 12) : 4 math.gcd(69, 23) : 5

Code #3: Explaining Exception.

Python3 `

Python code to demonstrate gcd()

method exceptions

import math

prints 0

print ("The gcd of 0 and 0 is : ", end ="") print (math.gcd(0, 0))

Produces error

print ("\nThe gcd of a and 13 is : ", end ="") print (math.gcd('a', 13))

`

Output:

The gcd of 0 and 0 is : 0

The gcd of a and 13 is : TypeError: 'str' object cannot be interpreted as an integer