# Sum of Integers from 1 to n

In this lesson, we will learn how to compute the sum of integers from 1 to n.

# What does the sum of integers from 1 to n mean?

Natural numbers are positive numbers starting from 1. These can be written as:

$1,2,3,4,5,6,7,8,9,10......$

We want to write a program that takes a number and sums up all the numbers from 1 until that number.

Below is a visual to help you understand:

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