Naming Large Numbers
Naming Large Numbers: Learn
In previous lessons, you learned that the first 3 digits represent hundreds, the next 3 represent thousands, and then the next represent million.
Numbers larger than millions continue this grouping pattern, and their names end in -illion with the Latin prefixes (bi-, tri-, etc.).
The chart below shows the first 10 -illion names.
| Name | Number | How Many Zeros | Scientific Notation |
|---|---|---|---|
| Million | 1,000,000 | 6 | 106 |
| Billion | 1,000,000,000 | 9 | 109 |
| Trillion | 1,000,000,000,000 | 12 | 1012 |
| Quadrillion | 1,000,000,000,000,000 | 15 | 1015 |
| Quintillion | 1,000,000,000,000,000,000 | 18 | 1018 |
| Sextillion | 1,000,000,000,000,000,000,000 | 21 | 1021 |
| Septillion | 1,000,000,000,000,000,000,000,000 | 24 | 1024 |
| Octillion | 1,000,000,000,000,000,000,000,000,000 | 27 | 1027 |
| Nonillion | 1,000,000,000,000,000,000,000,000,000,000 | 30 | 1030 |
| Decillion | 1,000,000,000,000,000,000,000,000,000,000,000 | 33 | 1033 |
Naming Large Numbers: Practice
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