# Java calculating factorial using recursive function

The factorial of a given positive integer is the product of all positive integers less than and equal to the given positive integer. For example, the factorial of 5!=1*2*3*4*5=120

Here is a Java program using recursive funcation call to calculate the factoral of a number.

public class Factorial { public static int factorial(int num) { if(num==1) return num; return num*factorial(num-1); } public static void main(String args[]) { int size=10; for(int i=1; i<size; i++) System.out.format("The factorial of %s is %s\n",i, Factorial.factorial(i)); } }

Output:

The factorial of 1 is 1 The factorial of 2 is 2 The factorial of 3 is 6 The factorial of 4 is 24 The factorial of 5 is 120 The factorial of 6 is 720 The factorial of 7 is 5040 The factorial of 8 is 40320 The factorial of 9 is 362880

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