In this example, you will learn to find all the factors of an integer entered by the user.

To understand this example, you should have the knowledge of the following C programming topics:

This program takes a positive integer from the user and displays all the positive factors of that number.

```
#include <stdio.h>
int main() {
int num, i;
printf("Enter a positive integer: ");
scanf("%d", &num);
printf("Factors of %d are: ", num);
for (i = 1; i <= num; ++i) {
if (num % i == 0) {
printf("%d ", i);
}
}
return 0;
}
```

**Output**

Enter a positive integer: 60 Factors of 60 are: 1 2 3 4 5 6 10 12 15 20 30 60

In the program, a positive integer entered by the user is stored in
`num`.

The `for`

loop is iterated until `i <= num`

is false.

In each iteration, whether `num` is exactly divisible by
`i` is checked. It is the condition for `i` to be a factor
of `num`.

```
if (num % i == 0) {
printf("%d ", i);
}
```

Then the value of `i` is incremented by 1.