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Python | math.gcd() function
  • Last Updated : 20 Mar, 2019

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.



Code #1:




# 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:




# 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.




# 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

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