Factorial of any number "n" is basically the product of all the positive integers less than the given number. Output: Enter the Number : 5 Factorial of 5 is: 120 Example 6: Factorial Program in Java using Command Line Arguments Following picture has the formula to calculate the factorial of a number. Solution. For example: Here, 4! Home » Java programs » Java basic programs Java program to find sum of factorials from 1 to N Here, we are implementing a java program that will read the value of … To understand this example, you should have the knowledge of the following Java programming topics: The factorial of a positive number n is given by: In this program, we've used for loop to loop through all numbers between 1 and the given number num (10), and the product of each number till num is stored in a variable factorial. public class Factorial { public static void main(String args[]) {int i, fact=1; int number=5; for(i=1;i<=number;i++) { fact=fact*i; } System.out.println("Factorial of "+number+" is: "+fact); } } Save the above code with any filename and .java extension. A technique of defining the … What is Factorial of Number? This example shows the way of using method for calculating Factorial of 9(nine) numbers. Also, num should be casted to BigInteger for multiplication. Play Video.