Fans of language might get a laugh out of today's XKCD.
Yes, there are languages where anything over 2 is just considered 'many'. You could probably save some time going through the names of colours in these languages, too. "Ready, kids? Light! Dark! That was fun!"
'Primitive cultures', though? I'm no anthropologist, but that seems a bit old school to my ears. And a hint: if they're watching Sesame Street on TV, their culture is probably not that primitive.