"""


Create a function that will find all primes below a given number. Return the
result as a list.

### Examples

    primes_below_num(5) ➞ [2, 3, 5]
    
    primes_below_num(10) ➞ [2, 3, 5, 7]
    
    primes_below_num(20) ➞ [2, 3, 5, 7, 11, 13, 17, 19]

### Notes

If `n` is a prime, it is included in the list.

"""

def primes_below_num(num):
  lst = [2]
  for i in range(3,num+1):
    l = []
    for j in range(2,i):
      l.append(i%j)
    if l.count(0) == 0:
      lst.append(i)
  return lst

