FaradayLab

# Correcting exclusion of last factor that needs to be checked
# Micro optimization of code
# Code syntax/format preference changes
# Might as well be able to check any number

# The algorithm builds a list of factors including the number 2 and all odd numbers 
# up to the square root of "a", and then checks if any of those numbers divides "a" 
# without a remainder - if so then "a" is not prime, else it is

from math import sqrt