Find the Sum of N Natural Numbers using Function Python

Learn about Find the Sum of N Natural Numbers using Function Python in the below code example. Also, refer to the comments in the code snippet to get a detailed view about what’s actually happening.

Find the Sum of N Natural Numbers using Function Python

The function findSum() in the below program takes a number as an argument and returns the total sum of the numbers.

Program:

# Python program to find sum of n natural numbers using function

#user-defined function
def findSum(num):  
    sum = 0
    x = 1
    while x <= num:
        sum += x
        x += 1
    return sum

# input
num = int(input('Enter a number: '))

# print result
print('The sum of natural number =', findSum(num))

Output:

Enter a number: 6
The sum of natural number = 21

Hope above code works for you and Refer the below Related Codes to gain more insights. Happy coding and come back again.