GCD of two or more non-zero number is the largest number that divides both or more non-zero numbers. It is one of the basic concepts of mathematics.
8 and 4 are two non-zero numbers which are divided by 2 and
also by 4 but 4 is the largest number than 2. So, the GCD of 8 and 4 is 4.
Here, an array of the non-zero numbers will be provided by the user and we have to find the GCD of the array elements in Python. To solve this problem, we will use the math module of Python. It is one of the most useful modules of Python used for mathematical operations. So, before going to solve this we will learn how to find the GCD of two non-zero numbers.