Hey, i'm at Practice Makes Perfect, 6: is_prime, and my code is
if x < 2:
elif x == 2:
for n in range(2, x):
if x % n == 0:
My error is
Oops, try again. Your function fails on is_prime(9). It returns True when it should return False.
What i don't understand, is why the loop doesn't exit once 9 % 3 == 0 is reached?