When it comes to NFL spreads the most common key numbers are the numbers 3 and 7 which makes total sense since most scoring is done in multiples of these numbers. Of course there are missed extra points and safeties, but I’m sure you would agree that these are rare occurrences in the NFL and that most scoring is done by teams scoring touchdowns and field goals. So Why Are the Numbers 3 and 7 So Important To You?