Oops, try again. Your function fails on is_prime(2). It returns None when it should return True.

I can't get what's wrong with my code. Please help!

```
x = raw_input("Please enter the prime number: ")
def is_prime(x):
if x < 2 :
return False
for n in range(2, x - 1):
if x % n == 0 :
return False
else:
return True
```