#factorial program example

C Program to Find Factorial of a Number

C Program to Find Factorial of a Number

The factorial of a positive number n is given by:

factorial of n (n!) = 1*2*3*4....n

The factorial of a negative number doesn’t exist. And, the factorial of 0 is 1, 0! = 1

#include <stdio.h> int main() { int n, i; unsigned long long factorial = 1;

printf(“Enter an integer: “); scanf(“%d”,&n);

// show error if the user enters a negative integer if (n < 0) pr…