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Javascript Calculate Sum of the First N Natural Numbers

Javascript  Calculate Sum of the First N Natural Numbers:In JavaScript, you can calculate the sum of the first N natural numbers using the formula: sum = (N * (N + 1)) / 2. This concise formula leverages arithmetic properties to efficiently compute the sum. It adds the numbers from 1 to N, exploiting the fact that pairs of numbers (1, N), (2, N-1), and so on, sum to the same value. The division by 2 simplifies the process, providing an elegant solution for summing consecutive natural numbers in programming applications.

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Abhishek Yadav (SD) SDE of FAI

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Anil Kumar (Expert) Coding Expert of FAI

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Nov 29, 2023 11:11 AM Last Updated
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Implementing the Formula in JavaScript

To implement this formula in JavaScript, you can use the following code

Javascript Calculate Sum of the First N Natural Numbers

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Output of Javascript Sum of the First N Natural Numbers

Suppose you want to find the sum of the first 12 natural numbers. By setting the value of n to 12 in the code, the output will be: 

The sum of the first 12 natural numbers is: 78

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