In the following section, we will see another reason for setting zero-factorial to be equal to 1, with a bit more mathematical logic behind it. In doing that, we will also introduce the Gamma function, which is, in plain terms, an extended factorial formula that includes all positive numbe...
import java.util.*; import java.math.BigInteger; public class Main { public static void main(String[] args) { Scanner cin = new Scanner(System.in); int k=Integer.parseInt(cin.nextLine()); while(k-->0) { int n=Integer.parseInt(cin.nextLine()); BigInteger s=new BigInteger("1"); fo...
In the above two programs, we didn’t wrap the logic within a function. Here we have enclosed the main logic in a function and then called that function to calculate thefactorial of the given numberin PHP. Here the name of the function is Factorial_Function which finds the factorial of n...