Large Numbers in Text: Millions, Billions, Notation
How to write large numbers in text: million, billion, trillion thresholds; when to use scientific notation; and style guide rules for financial writing.
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Tags: text, writing, style
Writing Large Numbers: Billions, Trillions, and Scientific Notation Large numbers are encountered everywhere — government budgets, astronomical distances, chemistry's Avogadro constant, database row counts, memory sizes. Writing them clearly and correctly requires understanding naming conventions, the difference between the short and long scale systems, and when to switch to scientific notation. --- The Short Scale (US and Modern UK) The United States, most English-speaking countries, and many others use the short scale, where each named number is 1,000 times the previous: | Name | Value | Zeros | Scientific | |------|-------|-------|-----------| | Thousand | 1,000 | 3 | 10³ | | Million | 1,000,000 | 6 | 10⁶ | | Billion | 1,000,000,000 | 9 | 10⁹ | | Trillion | 1,000,000,000,000 | 12 |…
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