How to make this Block of python code short and efficient

Question

I am total newbie to programming and python. I was solving a problem. I found the solution but it seems like too slow.

    if n % 2 == 0 and n % 3 == 0 and\\         


        

Answer 1

I'm a very light python user myself, and I didn't know about all. Those solutions are pretty cool (and probably more efficient than the one I'm about to post). But just if you want to see another way to do it, here is another option:

def IsDivUpTo20(n):
   for i in range(2, 21):
      if n % i != 0:
         return False
   return True

And call it like so

if IsDivUpTo20(50):
   #what to do if it is divisible
else:
   #what to do if it isn't
#for the example of 50, it'll be false and jump to the else part, but you can put any number of variable in there

Functionally it is working pretty much the same way 'all' is, but if you aren't used to the fancy syntax and built-ins this one is a bit more intuitive.

*Note: I use Python 3, not Python 2.7 as the question is tagged. I'm pretty sure this works in that version but if not, someone please correct me.