Prime Number

The Complex Number is a tier 5 tank that upgrades from Fractionalizer at level 60.

Design
The has a design very similar to the Fractionalizer, with the exception of the color of the barrels, which are bright orange and faded orange rather than black and white, respectively. Compared to Fractionalizer it also gains a dot atop its body, colored the same bright orange as its barrel.

Technical
NOTE: It is not known which color of drone had the special ability.

The ??? drones (fired from the ??? barrel) on shift or right click (aka alt-fire) are turned into Launcher missiles. These missiles perform as expected and fly outwards, using their propulsion barrel to go faster. The ??? drones function as normal drones.

Trivia

 * In mathematics, a prime number is a number with no factors other than itself and one.
 * This has the least contrasting colors out of all of the -Number tanks. While the others display stark contrast between their two barrel colors, both of Prime Number's colors are similar shades of orange.