[A. Pole]

If you can't find 4 like thinking people in your town with some testicular fortitude, I guess we are doomed!!

According to the Bible you need 10:

And he said, Oh let not the Lord be angry, and I will speak yet but this once: Peradventure ten shall be found there. And he said, I will not destroy it for ten's sake. (Genesis, 18:32)

[Hebrews 11:6]

According to the Bible you need 10

LOL. Actually, though, that's just the point where ol' Abe stopped asking. There might have been a bit more wiggle room.