{"id":10531,"date":"2022-11-17T07:56:30","date_gmt":"2022-11-17T07:56:30","guid":{"rendered":"https:\/\/www.prepbytes.com\/blog\/?p=10531"},"modified":"2023-05-17T06:43:28","modified_gmt":"2023-05-17T06:43:28","slug":"java-program-to-find-the-factorial-of-a-number","status":"publish","type":"post","link":"https:\/\/prepbytes.com\/blog\/java-program-to-find-the-factorial-of-a-number\/","title":{"rendered":"Java Program to Find the Factorial of a Number"},"content":{"rendered":"

\"\"<\/p>\n

The sum of all integers from 1 to the given number is known as the factorial of that number. Make sure you are comfortable with Java loops before continuing.<\/p>\n

Example:<\/strong><\/p>\n

Enter the number: 5<\/code><\/pre>\n
Output:<\/strong><\/p>\n
A factorial of 5 is 120<\/code><\/pre>\n
Method 1: Find the Factorial of a Number in Java.<\/h2>\n
In this method, we will learn how to find the factorial of a number in java using a while loop.<\/p>\n
Algorithm to Find the Factorial of a Given Number using a While Loop<\/h3>\n
    \n
  • Create an instance of a Scanner class.<\/li>\n
  • Declare and initialize the new variable.<\/li>\n
  • Declare a new variable for the loop and store the factorial of a number.<\/li>\n
  • Initialize both variables with 1.<\/li>\n
  • Traverse using a while loop.<\/li>\n
  • Run the loop till the given number.<\/li>\n
  • Update the factorial in each iteration of the number.<\/li>\n
  • Increment the loop variable.<\/li>\n
  • Print the factorial of a number.<\/li>\n<\/ul>\n
    Code Implementation of Java Program to Find Factorial of a Number using While Loop<\/h3>\n\t\t\t\t\t\t