Well we write both 2.3k and 2k3 to mean 2300. Most of the people in my class are but somple people and to save that vast ammount of energy writing the "." we miss it out and write 2k3.
Just to further muddy the waters ( and add to the nonsense-ness of this thread )...
Since k was never officially defined, we can not assume a number for it for convienence. However, I was wrong in saying that the simplest method of describing it was 2k3. In fact, this is shorthand for 2k * 3, which can be further simplified by 6k.
You can assume k to be anything really, but as is, we don't have the data to make any leaps of logic.
This thread needs one of those funny pictures that people post to condemn your thread to the world of pointless. Fortunately for you, I don't have one.