Stuck on the is_prime exercise. Really have no idea why the code isn't working, would very much appreciate any guidance.

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

I don't know why 9 returns true—as far as I can tell it should break when 9%3 == 0 and returns False. Does this mean there is a problem with my understanding of range? Or something completely different? XD

```
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
```