We will be using For Loop to find the factorial in this program. = 5 x 4 x 3 x 2 x 1 6! = n*(n-1)! Java Program to Find Factorial of a Number Using Recursion In this program, you'll learn to find and display the factorial of a number using a recursive function in Java. For this you can apply dynamic programmig. Add 6 in between 7 and 9 4. Factorial of a number is given as – n! Or can say, factorial of an integer is the product of all the integers below it, till 1. The factorial of a non-negative integer n is the product of all positive integers less than or equal to n. It is denoted by n!. E.g. In this approach, we are using recursion to calculate the factorial of a number. Java Program to Find Factorial of a Number. It is denoted with a (!) Good to know but not right to use for performance reason. For an example, the factorial of 5 is equivalent to 5 x 4 x 3 x 2 x 1. April 29, 2020 . Now, we will see an example of finding the factorial of number using … To compute factorial (4), we compute f (3) once, f (2) twice, and f (1) thrice. Factorial of 5 is 120. n! var up = document.getElementById ('GFG_UP'); var down = document.getElementById ('GFG_DOWN'); var n = 5; up.innerHTML = "Click on the button to calculate". # change the value for a different result num = 7 # To take input from the user #num = int(input("Enter a number: ")) factorial = 1 # check if the number is negative, positive or zero if num < 0: print("Sorry, factorial does not exist for negative numbers") elif num == 0: print("The factorial of 0 is 1") else: for i in range(1,num + 1): factorial = factorial*i print("The factorial of",num,"is",factorial) Java program to print the factorial of the given number Java Programming Java8 Java Technologies Factorial of a positive integer n is the product of all values from n to 1. = 4 x 3 x 2 x 1 5! Java Program to Find Factorial of a Number. Though both programs are technically correct, it is better to use for loop in this case. This is a Java program to find the factorial of a Number using for loop. program to find factorial of any number in java, Factorial of 5 = 120. It’s always better to have idea of how to build such factorial program. Class Factorial contains a main method which is the entry point for every Java program. + " the factorial of n.