Motorola talkgroups range from 16 to (2^16)-16 in increments of 16 using Uniden's weird method of including the status bit in the talkgroup ID.
There is a total of 4095 possible talkgroup IDs per system. The highest talkgroup ID is 65520 (decimal). In hexadecimal, ignoring the status bit, talkgroups range from 001 to FFF.
-Eric