Factors : using C

 #include <stdio.h>


int main()

{

    int number , num, factorial=1;

    printf("Enter your number :  ");

    scanf("%d", & number);

   if(number < 0) {

    printf("negative number can't computing ");

   } else if (number == 0 || number == 1){

   printf(" %d ! = 1", number);

   }else if (number > 1){

   for (num = number ; num > 1 ; num--){

    factorial= factorial*num;


   }printf(" %d ! = %d", number,factorial);

   }


return 0;


}

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