Which prefix denotes one billion?

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Multiple Choice

Which prefix denotes one billion?

Explanation:
In the metric system, prefixes show powers of ten attached to units. One billion equals 1,000,000,000, which is 10^9. The prefix for 10^9 is giga-, so it denotes a magnitude of one billion. For context, deci- is 10^-1 (one tenth), kilo- is 10^3 (one thousand), and mega- is 10^6 (one million). This is why terms like gigabyte or gigahertz use giga- to indicate billionth-scale quantities.

In the metric system, prefixes show powers of ten attached to units. One billion equals 1,000,000,000, which is 10^9. The prefix for 10^9 is giga-, so it denotes a magnitude of one billion. For context, deci- is 10^-1 (one tenth), kilo- is 10^3 (one thousand), and mega- is 10^6 (one million). This is why terms like gigabyte or gigahertz use giga- to indicate billionth-scale quantities.

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