Oops, try again.

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

Can some1 help me what i am doing wrong?

```
def is_prime(x):
if x == 0 or x== 1 :
return False
elif x ==2 or x ==3 :
return True
else:
for i in range(2,x):
if x % i ==0:
return True
else:
return False
```