Optimus Prime and Cybertron are not ,in fact, brothers as Cybertron is where all Transformers come from, or their home planet. and the Allspark being their source of power like our sun.
Optimus Prime is from the planet Cybertron.
cybertron when it transforms but no not devastator
In RID animated and cybertron he was
Optimus's Autobots,Optimus Prime,Ulta Magus,Unciron,shockwave and everyone on cybertron
When the allspark landed on cybertron scraps of robo tech formed robots and when they came to the human world and scanned others metal and iron stuff known as cars and the robot takes the form of the car.
Prime stands for a great leader. For example, before Optimus became a Prime, he was Orion Pax. Sentinel Prime was a leader before Optimus who taught him how to become a Prime. But later on Sentinel betrays Cybertron by siding with Megatron. Optimus was not born with the title of a Prime, he earned it.
No
They used to be friends they used to rule Cybertron together but now they are not friends
Optimus Prime has 10 brothers. The dynasty of primes (9) and Megatron
Sentinel Prime was Optimus's mentor. During the war for Cybertron, Sentinel realized that the Autobots had no chance of winning. He then decided to work with the Decepticons, therefore betraying Optimus and the other Autobots. Transformers 3 was a great movie.
Tie. Optimus Prime also has a Mini-Con from the Armada franchise and Leobreaker and Wing Saber from the Cybertron franchise, so every Optimus Prime (Including Optimus Primal) would team up and destroy the Ultrazord. Besides, there's only one Ultrazord.
Sentinel Prime is a bad guy, he is killed by Optimus Prime after teaming up with Megatron to save Cybertron. Megatron who is being humiliated by Sentinel decides to team up with Optimus and eventually kills him.