What is the sum of the first 40 even numbers?

Sum of the first 40 even numbers

The first 40 even numbers range from 2 to 80. On this page, we will show you how to calculate the first 40 positive even whole numbers by using our formula.

The formula to calculate the sum of even numbers is: sum = n × ( n + 1) where n is the even numbers. When we enter 40 into our formula, we get the following:

40 × (40 + 1)
= 1640

Therefore, the sum of the first 40 even numbers is 1640.

Be aware that we consider 2 to be the first positive even number. If you consider 0 to be the first positive even number, then the answer to the sum of the first 40 even numbers would be 1560.

Note that the sum of the first 40 even numbers is not the same as the sum of all even numbers up to 40. The sum of all even numbers from 1 to 40 inclusive is 420.

Sum of Even Numbers Calculator
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