the light: What's different between even numbers and odd numbers
Even numbers can be divided by two to get a whole number answer.
2,4,6,8,10,12,.... are all even
any number ending in 2,4,6,8, or 0 are even (except for 0 itself, that doesn't count)
Odd numbers are 1,3,5,7,9,11,13,15,17, etc
If it ends in 1,3,5,7 or 9 then the number is odd.
+118723 
