# What is the Average of First 15 Prime Numbers?

getcalc.com's **average of first n prime numbers calculator** to find what is the mean or average value of first 15

prime numbers. **21.8667** is an average of first 15 prime numbers mentioned in the below table, by substituting the total sum and count of numbers in the formula. The corresponding formulas, chart, examples and workout may help students, teachers or professionals to learn, teach or practice the average of first n natural numbers calculation.

## Numbers Chart

The below chart is the complete list of first 15 prime numbers for user reference.

First 15 Prime Numbers Chart (2 - 47) | |||||||||
---|---|---|---|---|---|---|---|---|---|

2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 | 29 |

31 | 37 | 41 | 43 | 47 |

## how to find the average of First 15 Prime Numbers?

The below workout with step by step calculation shows how to find what is the average of first 15 prime numbers manually.

step 1 Address the *formula* and input values.

Input values:

The first 15 prime numbers

2, 3, 5, . . . . , 43, 47

step 2 Find the sum of first 15 prime numbers

2 + 3 + 5 + . . . . + 43 + 47 = 328

step 3 Divide the sum by 15

328/15 = 21.8667

**21.8667** is an average of first 15 natural numbers or positive integers.

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