Mathematics
Sum of First n Natural Numbers
Calculate the sum of the first n positive integers.
S = n(n + 1) / 2
Formula Explanation
The formula gives the sum of consecutive natural numbers from 1 to n.
Variables Explained
n = Number of terms.
Solved Example
Find the sum of the first 50 natural numbers.
S = 50 × 51 / 2 = 1275.