Your function fails on is_prime(9). It returns True when it should return False.

My function is failing when I input Prime Numbers in it. I'm assuming that it keeps dividing by 0 in the last loop, however, even when I add "break," after the return statements, the function still spits out the error.

```
def is_prime(x):
if x < 2:
return False
elif x == 2:
return True
else:
for n in range(2, x):
if x % n == 0:
return False
break
else:
return True
break
```