Unlocking the Secrets of Positive Integer Factors

The Program in Action

The program begins by storing the user-inputted positive integer in the variable num. Here’s a breakdown of how it works:

int num;
printf("Enter a positive integer: ");
scanf("%d", &num);

The Power of the For Loop

A for loop is used to iterate until a certain condition is met. In this case, the loop continues until i is equal to num.

for (int i = 1; i <= num; i++) {
    // loop body
}

Uncovering the Factors

In each iteration, the program checks whether num is exactly divisible by i. If it is, then i is a factor of num.

if (num % i == 0) {
    printf("%d is a factor of %d\n", i, num);
}

The value of i is then incremented by 1, allowing the program to move on to the next potential factor.

The Result: A List of Positive Factors

As the program runs its course, it reveals the complete list of positive factors for the inputted integer. This is made possible by the clever use of the for loop and the conditional check for divisibility.

Prerequisites for Understanding

To fully grasp the workings of this program, it’s essential to have a solid foundation in C programming concepts, including:

• Operators: understanding how to perform arithmetic operations in C
• If…else statements: knowing how to use conditional statements to control program flow
• For loops: understanding how to use loops to iterate over a sequence of values

With this knowledge, you’ll be well-equipped to appreciate the elegance of this program and its ability to uncover the hidden factors of positive integers.