https://www.codecademy.com/courses/python-intermediate-en-rCQKw/0/6

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

I don't get why it doesn't return False at 9 instead of at other numbers. If anyone could take a look at my code and let me know that would be great

```
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
```