GCF function w recursion and helper function(how do i fix this Recursion Error)

[deanhystad]

Does GCD stand for Greatest Common Denominator? Is there any chance that this is how the code is supposed to work?

def gcd(x,y):
    if x > y:
        return gcd_helper(x, y, y)
    else:
        return gcd_helper(x, y, x)

def gcd_helper(x, y, f):
    if x % f == y % f == 0:
        return f
    else: 
        return gcd_helper(x, y, f-1)
     
print(gcd(3,2))

If so it would be faster and simpler to replace the helper function with a loop.