Factorial of n is the product of all positive descending integers. Factorial of n is denoted by n!

For example, n! = n * (n-1) * (n -2) * …….* 1

#### Factorial in C++ :

```
#include <iostream>
using namespace std;
int main()
{
int number, i;
long fact = 1;
cout << "Please enter any Number to find factorial : ";
cin >> number;
for(i=1;i<=number;i++)
fact = fact * i;
cout << "The factorial of "<< number <<" is : "<< fact;
return 0;
}
```

Output :

```
#include <iostream>
using namespace std;
int main()
{
int number, i;
long fact = 1;
cout << "Please enter any Number to find factorial : ";
cin >> number;
for(i=1;i<=number;i++)
fact = fact * i;
cout << "The factorial of "<< number <<" is : "<< fact;
return 0;
}
```

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