In this tutorial you will learn about the C Program to Find Factor of a Given Number and its application with practical example.
In this tutorial, we will learn to create a C program that will find Factors of a number using C programming.
Prerequisites.
Before starting with this tutorial we assume that you are best aware of the following C programming topics:
- Operators.
- If else statement.
- C for Loop.
- Basic input/output.
What Is Factor of number is?
Factors:=> So factors of a number are numbers that divide the number completely and remainder of divisor is equal to zero.
Example:->
The number 6 has four factors: 1, 2, 3, and 6 because all this number divide the number six completely.
C Program to Find Factor of a Given Number.
In this program we will find factor of given number using if else statement and for loop. We would first declared and initialized the required variables. Next, we would prompt user to input the number . Later we will find factors.
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#include <stdio.h> int main() { int no, j; //declaring variables printf("Enter any positive integer : "); // taking a postive number scanf("%d", &no); printf("Factors of gievn number %d are: ", no); for (j = 1; j <= no; ++j) // iteration of loop till given number { if (no % j == 0) // finding factors { printf("%d ", j); // printing factors. } } return 0; } |
Output
In this program we will take a positive integer from user by prompting and with the help of loop and if else statement we will displays all the positive factors of that number.
In the above program, we have first declared and initialized a set variables required in the program.
- no = It will hols number given by user.
- j= for iteration of loop and finding factor.
So the logic behind computing factors of a number is we will run a loop from 1 to no, increment 1 in each iteration.
The loop structure should look like this
Within the loop in each iteration we check the condition that j is a factor of no or not. To check factor we use divisibility of number by using modulo division
i.e. if( no % j == 0) then j is a factor of no If j is a factor of no then we will print the value of j.So we will get the required factors of given number.
