largest number you've had to store in an application?
Dav3xor: I built an aviation mapping engine that used fixed point math for lat/lon representation.  It basically used an entire 32bit signed int and gave a guaranteed minimal resolution of 3 feet.  It would quite often go to the ragged edge of what you can fit in a 32 bit quantity.The fun bit was that you had to use 2 combined registers (ARM) to represent a 64bit quantity so you could do multiplication and keep all your precision.Oh, for the luxury of a FPU...