C Program to find Factors of a Number

C program to find factors of a number; Through this tutorial, we will learn how to find factors of a number in c program using For Loop, While Loop, Functions, and pointer.

Programs to find Factors of a Number in C

• C Program to find Factors of a Number Using While Loop
• C Program to find Factors of a Number Using For Loop
• C Program to find Factors of a Number Using Functions
• C Program to find Factors of a Number Using Pointer

C Program to find Factors of a Number Using While Loop

#include <stdio.h>

int main()
{
  int Number, i = 1;

  printf("\n Please Enter number to Find Factors :- ");
  scanf("%d", &Number);

  printf("\n The Factors of a Number are: :- ");
  while (i <= Number)
   {
     if(Number%i == 0)
      {
        printf("%d  ", i);
      }
    i++;
   }

  return 0;
}

The output of the above c program; as follows:

Please Enter number to Find Factors :- 10
The Factors of a Number are: :- 1  2  5  10  

C Program to find Factors of a Number Using For Loop

/* C Program to Find factors of a number */

#include <stdio.h>

int main()
{
  int i, Number;

  printf("\n Please Enter any number to Find Factors :- ");
  scanf("%d", &Number);

  printf("\n Factors of the Given Number are :- ");
  for (i = 1; i <= Number; i++)
   {
     if(Number%i == 0)
        {
		 printf(" %d  ", i);
		}
   }

  return 0;
}

The output of the above c program; as follows:

Please Enter any number to Find Factors :- 20
Factors of the Given Number are :-  1   2   4   5   10   20  

C Program to find Factors of a Number Using Functions

/* C Program to Find Factors of a Number using Functions */

#include <stdio.h>

void Find_Factors(int);

int main()
{
  int Number;

  printf("\nPlease Enter number to Find Factors :- ");
  scanf("%d", &Number);

  printf("\nFactors of a Number are :- ");
  Find_Factors(Number);

  return 0;
}

void Find_Factors(int Number)
{
  int i;

  for (i = 1; i <= Number; i++)
   {
    if(Number%i == 0)
     {
       printf("%d ", i);
     }
   }
}

The output of the above c program; as follows:

Please Enter number to Find Factors :- 40
Factors of a Number are :- 1 2 4 5 8 10 20 40 

C Program to find Factors of a Number Using Pointer

/* C Program to Find Factors of a Number using Pointers */

#include <stdio.h>

void Find_Factors(int *);

int main()
{
  int Number, *P;

  printf("\n Please Enter number to Find Factors :- ");
  scanf("%d", &Number);

  P = &Number;

  printf("\n Factors of a Number are :- ");
  Find_Factors(P);

  return 0;
}

void Find_Factors(int *Number)
{
  int i;

  for (i = 1; i <= *Number; i++)
   {
    if(*Number % i == 0)
     {
       printf("%d ", i);
     }
   }

}

The output of the above c program; as follows:

Please Enter number to Find Factors :- 10
Factors of a Number are :- 1 2 5 10 

Recommended C Programs