Hello everyone! I am having trouble with this code. It returns an error when I run it: **"Your function fails on is_prime(9). It returns True when it should return False."** Thanks for your help!

```
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
else:
return True
```