# Python GCD code using math.gcd() Function

By | July 26, 2019

Python GCD code using math.gcd() function – This Python programming tutorial explains the method of finding GCD of two numbers using math module’s gcd() function.

### What is Python gcd() functin of math module

The math.gcd(a,b) function return the greatest common divisor of the integers a and b. Therefore, gcd(a,b) function will calculate the largest positive integer that divides both a and b. Note that gcd(0, 0) returns 0.

### Python GCD code using math.gcd(a,b) Function

```# Write a Python program to find
# GCD of two numbers using gcd(a,b)
# function of math module

# Author: www.EasyCodeBook.com (c)

import math
num1= int(input('Enter the first number='))
num2= int(input('Enter the second number='))

result = math.gcd(num1,num2)

print('GCD of',num1,'and',num2,'is:',result)
```

### The output of the program using gcd() function

```Enter the first number=60
Enter the second number=80
GCD of 60 and 80 is: 20

Another sample run of the program:
Enter the first number=21
Enter the second number=101
GCD of 21 and 101 is: 1
``` Python GCD code using math.gcd() Function 