**Kotlin Program to Calculate the Sum of Natural Numbers**: In this program, you’ll learn to calculate the sum of **natural numbers** using for loop and while loop in Kotlin. You’ll also see how ranges can be helpful for solving the problem.

## Kotlin Program to Calculate the Sum of Natural Numbers

**Source Code **

```
fun main(args: Array<String>) {
val num = 100
var sum = 0
for (i in 1..num) {
// sum = sum+i;
sum += i
}
println("Sum = $sum")
}
```

**Output**