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
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

Name the Given Number

00:00

Press the Start Button To Begin

You have 0 correct and 0 incorrect.

This is 0 percent correct.

Play

Game Name Description Best Score
How many correct answers can you get in 60 seconds? 0
Extra time is awarded for each correct answer.
Play longer by getting more correct.
0
How fast can you get 20 more correct answers than wrong answers? 999