Numbers Between 4 and 21
TOTAL NUMBERS: 16
The numbers between 4 and 21, excluding both endpoints, are listed below. Useful for math problems, ranges, and number sets.
What Are the Numbers Between 4 and 21?
To find the numbers between 4 and 21 excluding the bounds, we list all whole numbers greater than 4 and less than 21. This is a common operation in mathematics, programming, and data filtering.
How to Calculate the Count of Numbers Between
The formula to calculate how many whole numbers are between two integers is:
- Inclusive:
abs(B - A) + 1 - Exclusive:
abs(B - A) - 1
So for 4 and 21 in exclusive mode, the count is: 16.
List of Numbers
| # | Number |
|---|---|
| 1 | 5 |
| 2 | 6 |
| 3 | 7 |
| 4 | 8 |
| 5 | 9 |
| 6 | 10 |
| 7 | 11 |
| 8 | 12 |
| 9 | 13 |
| 10 | 14 |
| 11 | 15 |
| 12 | 16 |
| 13 | 17 |
| 14 | 18 |
| 15 | 19 |
| 16 | 20 |
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FAQ
-
How many numbers are between 4 and 21?
There are 16 numbers between 4 and 21 when counted exclusively.
-
What does inclusive mean?
Inclusive means both 4 and 21 are part of the result.
-
What does exclusive mean?
Exclusive means neither 4 nor 21 is included in the result list.
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Random Examples
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What Is This Tool Used For?
This number range finder is useful in many cases such as:
- Programming loops and ranges
- Teaching number sense in classrooms
- Generating test datasets or practice exercises
- Solving math problems involving intervals