CodeTheta

Code :
#include<iostream>
#include<conio.h>
using namespace std;
int factorial(int);

int main(){
    int number;
    cout<<"Enter a number: ";
    cin>>number;
    factorial(number);
}

int factorial(int x) {
    int fact = 1, i;
    for(i=1;i<=x;i++) {
    fact = fact *i;
    }
 cout<<"Factorial is: "<<fact;
 return 0;
   
}

Output : 
Enter a number: 3
Factorial is: 6

IDE Used To Test This Code : DEV C++

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