What is a 3-digit number?

A 3-digit number is a number that has 3 digits where the first digit must be 1 or greater. On this page, we will answer three questions for you: What is the smallest 3-digit number? What is the largest 3-digit number? How many 3-digit numbers are there?

Smallest 3-digit number
The smallest 3-digit number is 1 followed by 2 zeros. This number is called one hundred.

Largest 3-digit number
The largest 3-digit number is 9 followed by another 2 nines. This number is called nine hundred ninety-nine.

Total number of 3-digit numbers
There are a total of nine hundred different 3-digit numbers. nine hundred is 9 followed by 2 zeros.

Digit Numbers
Here you can learn about another digit number.

What is a 4-digit number?
Go here for information about the next digit number on our list that we have information about.