Find the factorial of given number using any loop in C

 Find the factorial of given number using any loop in C

Program:

#include <stdio.h>

int main() {

    int num, i;

    unsigned long long factorial = 1;  // Use unsigned long long to handle larger numbers

    

    // Prompt user for input

    printf("Enter a number: ");

    scanf("%d", &num);

    

    // Check if the number is negative

    if (num < 0) {

        printf("Factorial is not defined for negative numbers.\n");

    } else {

        // Calculate factorial using a for loop

        for (i = 1; i <= num; ++i) {

            factorial *= i;

        }

        

        // Output the result

        printf("Factorial of %d = %llu\n", num, factorial);

    }

    return 0;

}

Output: