# Python | math.gcd() function

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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