# Python Program to Find the Sum of Natural Numbers

In this post, we will see how to find sum of natural numbers.

- Initialize sum to 0
- Iterate over range(n+1) and add to sum
- You will get sum of all natural number in the end

Let’s see very simple python program for it.

```
n=11
sum=0
for i in range(n+1):
sum+=i
print("Sum is",sum)
```

**Output:**

Sum is 66

Can you find simpler solution?

Well, you can simply find sum of all natural numbers using below formula

```
n=11
sum=0
sum =(n*(n+1))/2
print("Sum is",sum)
```

**Output:**

Sum is 66

That’s all about finding sum of natural numbers.