The average of the first 4 natural numbers


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Here we will define and show you the formula and the math to calculate the average of the first 4 natural numbers.

The first 4 natural numbers are the whole numbers (integers) that start with 1 and end with 4. To make a list of the first 4 natural numbers, you simply count up to 4.

To get the average of those 4 numbers, you add them up and then divide the sum by 4. We created a formula that can calculate the average of any sequence of natural numbers starting with 1. Here is the formula to calculate the average (avg) of the first n natural numbers:

avg = ((n × (n + 1)) ÷ 2) ÷ n

When we enter n = 4 in our formula, we get the average of the first 4 natural numbers. Here is the math and the answer:

avg = ((n × (n + 1)) ÷ 2) ÷ n
avg = ((4 × (4 + 1)) ÷ 2) ÷ 4
avg = ((4 × 5) ÷ 2) ÷ 4
avg = (20 ÷ 2) ÷ 4
avg = 10 ÷ 4
average = 2.5


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What is the average of the first 5 natural numbers?
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