This is the error i get:

Oops, try again. Your function fails on is_prime(4). It returns True when it should return False.

I'm not sure why this is not returning correctly as 4/2 = 2 which should return as type 'int'.

What am i missing?

```
def is_prime(x):
if x < 2:
return False
elif x == 2:
return True
else:
for n in range(2, (x-1)):
if type(x/n) == 'int':
return False
return True
```