Prime

Prime appears as a corpse at Dot's Diner near the Jury Street Metro Station, but only after you answer the 3 terminals in the Museum of Technology correctly. The three terminals are recognizable by the #001 #002 and #003 option at the bottom of the options menu upon entering each terminal. From the outside, the terminals look like any other computer terminals on the wall. The First terminal will have #000 for an option, and when you pass that, it'll change to #001 so the player could start a mini game. The key to the mini game is the use of prime numbers. After the player answers all 3 terminals across the Museum of Technology, he will be awarded with a key to a safe in the museum, and will be told that Prime will await you at Dot's Dinner near the Jury Street Metro Station. When you get there, you'll find the sweet Xuanlong Assault Rifle in his corpse.