C Exercises: Check whether a number is a Strong Number or not
C For Loop: Exercise-47 with Solution
Write a C program to check whether a number is a Strong Number or not.
Visual Presentation:

Sample Solution:
C Code:
#include <stdio.h> // Include the standard input/output header file.
void main()
{
int i, n, n1, s1 = 0, j; // Declare variables to store input and results.
long fact; // Declare a variable to store factorial.
printf("\n\nCheck whether a number is Strong Number or not:\n "); // Print a message.
printf("----------------------------------------------------\n"); // Print a separator.
printf("Input a number to check whether it is Strong number: "); // Prompt the user for input.
scanf("%d", &n); // Read the number from the user.
n1 = n; // Store the original number for comparison.
// Loop to process each digit of the number.
for (j = n; j > 0; j = j / 10)
{
fact = 1; // Initialize factorial.
// Loop to calculate factorial of a digit.
for (i = 1; i <= j % 10; i++)
{
fact = fact * i;
}
s1 = s1 + fact; // Accumulate factorial sum.
}
if (s1 == n1)
{
printf("\n%d is Strong number.\n\n", n1); // Print result if it's a strong number.
}
else
{
printf("\n%d is not Strong number.\n\n", n1); // Print result if it's not a strong number.
}
}
Sample Output:
Check whether a number is Strong Number or not: ---------------------------------------------------- Input a number to check whether it is Strong number: 15 15 is not Strong number.
Flowchart:

C Programming Code Editor:
Previous: Write a program in C to convert a binary number into a decimal number using math function.
Next: Write a C program to find Strong Numbers within a range of numbers.
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