Learn and know the formula for finding the **sum of even numbers**. If there are limited or finite number of even numbers let’s say 10 even numbers. Finding the **sum of these 10 even numbers** is very easy; just we add all the even numbers to get the sum.

If you want to find **sum of 150 even numbers** then it becomes very difficult to find sum. We can find the sum by adding all the even numbers but the problem is it is a time taking process. So in order to find **sum of even numbers** that may be 50 or 100 or 150 or 300 even numbers we need to know the formula.

**Formula for finding sum of “n” even numbers:**

Let 2, 4, 6, 8, 10, 12, 14, 16, ………………,n be the even numbers, then **the sum of all these even numbers** i.e. 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + …………………..+ n is given by n ( n + 1 ).

Example:

Let us take some even numbers 2, 4, 6, 8, 10, 12, 14, 16. Here we have 8 even numbers. The sum of all these 8 even numbers is given by 8 (8 + 1) = 8 (9) = 72.

Hope that the formula is useful in finding the **sum of any number of even numbers**.

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