#include <stdio.h>
#include <math.h>
int factorial(int num);
int isStrongNumber(int num);
int main() {
int num;
printf("Enter a number: ");
scanf("%d", &num);
if (isStrongNumber(num)) {
printf("%d is a strong number.\n", num);
} else {
printf("%d is not a strong number.\n", num);
}
return 0;
}
int factorial(int num) {
int fact = 1;
for (int i = 1; i <= num; i++) {
fact *= i;
}
return fact;
}
int isStrongNumber(int num) {
int originalNum, remainder, result = 0;
originalNum = num;
while (originalNum > 0) {
remainder = originalNum % 10;
result += factorial(remainder);
originalNum /= 10;
}
return (result == num);
}