Jax Pavan 123,456,789

As a young boy, he won the Coruscant Mathmatics Bowl, taking top prize after reciting pi to the 100,000th digit.

He went on to join the Imperial Navy, serving aboard the Super Star Destroyer Executor as the ship's mathematician. Fortunately for him, he was transferred back to Coruscant just before the Battle of Endor. When the New Republic liberated the planet, he continued his career doing sums.