Python Program to Find the Sum of Natural Numbers Using While Loop

In this example shows, how to find the sum of the first n natural numbers using a while loop.

Get the input from user.
The program calculates the sum of the first N natural numbers using a while loop

Example.py

n = int(input("Enter a Number: "))
i = 1
sum = 0
while (i <= n):
    sum = sum + i
    i = i + 1
print("The sum is: ", sum)

Output 1

Enter a Number  : 5
The sum is :  15