PYTHON: This homework requires you to write your code in the form of functions. While the same output can be achieved without using functions. Your code should have functions in them

Write a function, called factor, which takes an integer, say n, as a parameter and returns the first number between 2 and n-1 which divides n. If no such number exists it returns -1

Sample output 1:

Enter n: 15

The smallest divisor is : 3

Sample output 2:

Enter n: 17

The smallest divisor is : -1

Sample output 3:

Enter n: 16

The smallest divisor is : 2