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Which prefix denotes a value of one billion?

  1. Kilo

  2. Mega

  3. Giga

  4. Tera

The correct answer is: Giga

The prefix that denotes a value of one billion is "Giga." In the International System of Units (SI), "Giga" is used to represent 10^9, which is a billion. This prefix is commonly used in various fields including computing and telecommunications. For example, a gigabyte (GB) is equal to one billion bytes. Other prefixes like "Kilo," "Mega," and "Tera" have their own specific values; "Kilo" represents one thousand (10^3), "Mega" denotes one million (10^6), and "Tera" signifies one trillion (10^12). Each prefix has a distinct value and plays a crucial role in quantifying large amounts of data or measurements in science and technology. Understanding these prefixes is essential for interpreting data correctly in various contexts.