Find Factorial From 1 to 10 in Java

Find Factorial From 1 to 10 in Java | In mathematics, the factorial of a positive integer number specifies a product of all integers from 1 to that number. It is defined by the symbol exclamation mark (!).

Formula:- factorial(n) = n * factorial(n-1)

General Case for Finding Factorial

Factorial (n) =
1 * 2 * … * (n-1) * n
Or,
n * (n-1) * … * 2 * 1

Note:- The factorial of a negative number and float number doesn’t exist.

The Base Case for Finding Factorial

factorial(0) = 1
Or,
factorial(1) = 1

For example:- The factorial of 3 = 3! = 321 or 123 = 6

Find Factorial From 1 to 10 in Java

In this program, we will discuss how to find the factorial of the number from 1 to 10. We will use the for loop to find factorial. The for loop calculates the factorial of the number because it uses an increment operator.

public class Factorial {
   public static void main(String[] args) {
      
      // declare variables
      int count;
      long factorial = 1;
      
      // Find factorial from 1 to 10
      System.out.printf("%4s%30s\n", "Number", "Factorials");
      for(count = 1; count <= 10; count++)
      {
         factorial *= count;
         System.out.printf("%4d%,30d\n", count, factorial);
      }
   }
}

Output:-

Number                    Factorials
   1                             1
   2                             2
   3                             6
   4                            24
   5                           120
   6                           720
   7                         5,040
   8                        40,320
   9                       362,880
  10                     3,628,800

If you enjoyed this post, share it with your friends. Do you want to share more information about the topic discussed above or do you find anything incorrect? Let us know in the comments. Thank you!