C Program to Check Strong Number

C Program to Check Strong Number

C program to check strong number; Through this tutorial, we will learn how to check a number is strong or not in c program using for loop, while loop and function.

Programs to Check Strong Number in C

  • C Program to Check Strong Number using While Loop
  • C Program to Check Strong Number using For Loop
  • C Program to Check Strong Number using Function

C Program to Check Strong Number using While Loop

#include <stdio.h>
 
int main()
{
  int Number, Temp, Reminder, Sum = 0, i; 
  long Factorial;
 
  printf("\nPlease Enter a Number to Check for Strong Number :- ");
  scanf("%d", &Number);
  
  //Helps to prevent altering the original value
  Temp = Number;
  while( Temp > 0)
   {
     Factorial = 1, i = 1; 
     Reminder = Temp % 10;
     while (i <= Reminder)
     {
     	Factorial = Factorial * i;
     	i++;
     }
     printf("\n Factorial of %d = %d\n", Reminder, Factorial);
     Sum = Sum + Factorial;
     Temp = Temp /10;
   }
 
  printf("\n Sum of the Factorials of a Given Number %d is = %d\n", Number, Sum);
 
  if ( Number == Sum )
      printf("\n %d is a Strong Number.\n", Number);
  else
      printf("\n %d is not a Strong Number.\n", Number);
 
  return 0;
}

The output of the above c program; as follows:

Please Enter a Number to Check for Strong Number :- 145
Factorial of 5 = 120

 Factorial of 4 = 24

 Factorial of 1 = 1

 Sum of the Factorials of a Given Number 145 is = 145

 145 is a Strong Number.

C Program to Check Strong Number using For Loop

#include <stdio.h>
 
int main()
{
  int Number, Temp, Reminder, Sum = 0, i; 
  long Factorial;
 
  printf("\nPlease Enter a Number to Check for Strong Number :- ");
  scanf("%d", &Number);
  
  //Helps to prevent altering the original value
  Temp = Number;
  for(Temp = Number; Temp > 0; Temp =  Temp / 10 )
   {
     Factorial = 1;  
     Reminder = Temp % 10;
     for (i = 1; i <= Reminder; i++)
     {
     	Factorial = Factorial * i;
     }
     printf(" Factorial of %d = %d\n", Reminder, Factorial);
     Sum = Sum + Factorial;
    }
 
  printf("\n Sum of the Factorials of a Given Number %d is = %d\n", Number, Sum);
 
  if ( Number == Sum )
      printf("\n %d is a Strong Number.\n", Number);
  else
      printf("\n %d is not a Strong Number.\n", Number);
 
  return 0;
}

The output of the above c program; as follows:

Please Enter a Number to Check for Strong Number :- 145
Factorial of 5 = 120

 Factorial of 4 = 24

 Factorial of 1 = 1

 Sum of the Factorials of a Given Number 145 is = 145

 145 is a Strong Number.

C Program to Check Strong Number using Function

#include <stdio.h>

long Calculate_Factorial(int); 

int main()
{
  int Number, Temp, Reminder, Sum = 0; 
  long Factorial;
 
  printf("\nPlease Enter a Number to Check for Strong Number :- ");
  scanf("%d", &Number);
  
  //Helps to prevent altering the original value
  Temp = Number;
  for(Temp = Number; Temp > 0; Temp =  Temp / 10 )
  {
     Factorial = 1;  
     Reminder = Temp % 10;

     // Calling Calculate_factorial Function
     Factorial = Calculate_Factorial(Reminder);

     printf("Factorial of %d = %d\n", Reminder, Factorial);
     Sum = Sum + Factorial;
   }
 
   printf("\nSum of the Factorials of a Given Number %d is = %d\n", Number, Sum);
 
   if ( Number == Sum )
      printf("\n%d is a Strong Number.\n", Number);
   else
      printf("\n%d is not a Strong Number.\n", Number);
 
   return 0;
}

long Calculate_Factorial(int Number)
{ 
  if (Number == 0 || Number == 1)  
    return 1;
  
  else
    return Number * Calculate_Factorial (Number -1);
}

The output of the above c program; as follows:

Please Enter a Number to Check for Strong Number :- 145
Factorial of 5 = 120

 Factorial of 4 = 24

 Factorial of 1 = 1

 Sum of the Factorials of a Given Number 145 is = 145

 145 is a Strong Number.

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AuthorAdmin

My name is Devendra Dode. I am a full-stack developer, entrepreneur, and owner of Tutsmake.com. I like writing tutorials and tips that can help other developers. I share tutorials of PHP, Python, Javascript, JQuery, Laravel, Livewire, Codeigniter, Node JS, Express JS, Vue JS, Angular JS, React Js, MySQL, MongoDB, REST APIs, Windows, Xampp, Linux, Ubuntu, Amazon AWS, Composer, SEO, WordPress, SSL and Bootstrap from a starting stage. As well as demo example.

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