number of mesh prim question

[jaden Charisma]

Formulated a number of questions about the mash-prim  

I can not understand.  

How is the number of prim prim mesh is being formulated?

[Irene Muni]

- A long guide: http://community.secondlife.com/t5/Mesh/Prims-Prim-Equivalent-Land-Impact-a-too-long-guide/td-p/1293579

- Calculating land impact: http://community.secondlife.com/t5/English-Knowledge-Base/Calculating-land-impact/ta-p/974163

- Wide info: http://wiki.secondlife.com/wiki/Mesh (and links).