# What's the difference between octal numbers and decimal numbers?

$0 , 1 , 2 , 3 , 4 , 5 , 6 , 7$

#### Explanation:

The octal numbering system uses 8 digits (this is compared to the decimal system using 10 digits). The octal system uses:

$0 , 1 , 2 , 3 , 4 , 5 , 6 , 7$

To see how this works, let's compare a few decimal numbers to octal numbers:

$\text{D" color(white)(000) "O}$

$1 \textcolor{w h i t e}{0000} 1$

$7 \textcolor{w h i t e}{0000} 7$

$8 \textcolor{w h i t e}{0000} 10$

$10 \textcolor{w h i t e}{000} 12$

$64 \textcolor{w h i t e}{000} 100$