Here is the C code that you can use to calculate the factorial of any given integer. The integer should be >=0. If you provide a negative integer, the code will return error.
#include <stdio.h>
int main() {
int num;
int factorial = 1;
printf("Enter a number to compute its factorial: ");
scanf("%d", &num);
if (num > 0){
for (int i = 1; i <= num; ++i) {
factorial *= i;
}
}
else if (num < 0){
printf("Please enter a number >=0\n");
return -1;
}
printf("Factorial of %d = %d\n", num, factorial);
return 0;
}
Here is one output of the code:
Enter a number to compute its factorial: 10
Factorial of 10 = 3628800
