What is the metric prefix for 10^6?

The metric prefix for ( 10^6 ) is "Mega." This prefix is widely used in various fields, including electrical and computing contexts, to denote a factor of one million. For instance, in power and data measurements, you may encounter one megawatt (MW) representing one million watts, or one megabyte (MB) indicating one million bytes.

In contrast, the other options represent different powers of ten: "Giga" corresponds to ( 10^9 ), "Kilo" is for ( 10^3 ), and "Terra" signifies ( 10^{12} ). These prefixes serve to quantify and simplify the communication of large numbers in scientific and technical disciplines, underscoring the importance of understanding their meanings and applications.