CPP
cpp
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#include <iostream>
using namespace std;
/* the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. */
int main()
{
//sample number
int n = 8;
long fact = 1;
for (int i = 1; i <= n; i++)
fact = fact*i;
cout << n << "! = " << fact << endl;
return 0;
}
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OUTPUT
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