Example to find all factors of an integer (entered by the user) using for loop and if statement.

To understand this example, you should have the knowledge of 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 number, i;
printf("Enter a positive integer: ");
scanf("%d",&number);
printf("Factors of %d are: ", number);
for(i=1; i <= number; ++i)
{
if (number%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 variable `number`.

The `for`

loop is iterated until `i <= number`

is false. In each iteration, whether `number` is exactly divisible by `i` is checked (condition for `i` to be the factor of `number`) and the value of `i` is incremented by 1.