Which Primes are we talking about? The ones that start from the Thirteen, to the ones before Optimus/Rodimus, or all the Optimuses?
Let's see Prima Megatronus Prime AKA The Fallen Alpha Trion Solus Prime Vector Prime Liege Maximo Nexus Prime Alchemist Prime Amalgamous Prime Optimus Prime Sentinel Prime Rodimus Prime Bendy-Bus Prime Zeta Prime Guardian Prime Prime Nova Primal Prime Modus Prime Longarm Prime Leo Prime Jack Darby Big Bang Prime Override Prime Ultra Magnus (formerly Ultra Prime?)