What metric prefix represents 10^9?

The metric prefix that represents 10^9 is "giga." In the metric system, prefixes are used to denote different orders of magnitude, and "giga" specifically signifies a billion, or one thousand million. This is particularly useful in various fields, including science and technology, where large quantities or values are often encountered. For example, in computing, gigabytes are commonly used to describe data storage capacities, emphasizing the significance of this prefix.

To provide additional context, "kilo" represents 10^3 (one thousand), "mega" represents 10^6 (one million), and "tera" represents 10^12 (one trillion). Each prefix increases in scale by a factor of a thousand, which helps to categorize and simplify the communication of large numbers in scientific and daily contexts.