What is the prefix in the metric system that represents trillion?

In the metric system, the prefix that represents trillion is "tera." Specifically, "tera" denotes a factor of (10^{12}) or 1,000,000,000,000. This prefix is commonly used in various scientific fields to quantify large amounts, such as in data storage where one terabyte is equal to one trillion bytes.

The other prefixes listed represent different powers of ten. "Mega" corresponds to (10^6) or one million, "giga" refers to (10^9) or one billion, and "peta" stands for (10^{15}) or one quadrillion. Understanding these distinctions is essential in fields such as science and engineering, where accurate measurements and conversions between different orders of magnitude are crucial.