Can you solve the feeding frenzy riddle?

As Numberland's best detective, you thought you'd seen it all. But the desiccated corpses of prominent natural numbers have been showing up all over the city. A lockdown is ordered from sundown to sunrise, and it's still not enough to stop what can only be described as a vampiric feeding frenzy. Can you figure out why the citizens of Numberland are being attacked? Henri Picciotto shows how. [Directed by Igor Coric, Artrake Studio, narrated by Addison Anderson, music by Cem Misirlioglu, Greg Chudzik].