import java.util.*;
import java.lang.*;
import java.io.*;
 
class Ideone
{
	{
 
        int numero = 6;
        System.
out.
println("O fatorial de " + numero 
+ " é " + fatorial
(numero
) + "."); 	}
 
	public static int fatorial(int num) {
 
        if (num <= 1) {
            return 1;
        } else {
            return fatorial(num - 1) * num;
        }
    }
}
				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