# What is the Average of First 4 Odd Composite Numbers?

getcalc.com's average of first n composite numbers calculator, formulas, numbers chart, examples and workout to find what is the mean or average of first 4 odd composite numbers. **17.5** is an average of first 4 odd composite (non-prime) numbers mentioned in the below table, by substituting the total sum and count of numbers in the below formula.

## Numbers Chart

The below chart is the complete list of first 4 odd composite numbers for user reference.

First 4 Odd Composite Numbers Chart (9 - 25) | |||
---|---|---|---|

9 | 15 | 21 | 25 |

## how to find the average of First 4 Odd Composite Numbers?

The below workout with step by step calculation shows how to find what is the average of first 4 odd composite numbers manually.

step 1 Input values:

The first 4 odd composite numbers

9, 15, 21, 25

step 2 Find the sum of first 4 oddcomposite numbers

9 + 15 + 21 + 25 = 70

step 3 Divide the sum by 4

70/4 = 17.5

**17.5** is an average of first 4 natural numbers or positive integers.

### Average of Natural, Odd, Even and Prime Numbers

The below are the other calculators to find the average of natural, odd, even and prime numbers.