Write a python function proddigits() that inputs a positive integer number and returns the product of digits of that number. For example, if the input is 422, the function should return 16 (which is equal to 4×2×2 ).

Sure, here is a Python function `proddigits()` that takes a positive integer as input and returns the product of its digits:

def proddigits(n):
    # Initialize the result
    result = 1
    
    # Loop through each digit of the number
    while n > 0:
        # Get the last digit
        digit = n % 10
        
        # Multiply it to the result
        result *= digit
        
        # Remove the last digit from the number
        n //= 10
    
    # Return the final result
    return result

You can call this function with a positive integer argument to get the product of its digits. For example:

# Test the function
num = 422
print(proddigits(num))  # Output: 16

I hope this helps! Let me know if you have any other questions.