https://www.codecademy.com/courses/python-intermediate-en-rCQKw/0/6?curriculum_id=4f89dab3d788890003000096#

Oops, try again. Your function fails on is_prime(3). It returns None when it should return True.

Hello,

I think I am blind or going crazy. I can't see how my functions returns none. For me if it takes 3 as input, it should return false.

Can anyone see what's wrong about this code?

Your help will be appreciated a lot! Thanks

```
def is_prime(x):
if x < 2:
return False
elif x == 2:
return True
else:
for n in range(2,x-1):
if x % n == 0:
return False
else:
return True
```