Why Is My Python Function Not Returning the Expected Result?

I wrote a Python function to calculate the factorial of a number, but it's not returning the correct results. Here's my code.

def factorial(n):
    if n == 1:
        return 1
    else:
        return n * factorial(n - 1)
print(factorial(5))

I expected it to return 120 for factorial(5), but it's giving me a different number. What am I doing wrong?