Six people. According to the query of Siemens official website, Siemens 802 system displays 6 decimal places, and Siemens CNC uses 32 binary floating-point numbers, of which 23 digits represent mantissa and 8 digits represent exponent. Siemens AG is a leading scientific and technological enterprise in the world, established in 1847, and its business covers more than 200 countries around the world.