Question

write a program to print the factorial of first 20 even numbers using for loop java.
​

Answer 1

Required Answer:-

Question:

• Write a program to print the factorial of first twenty even numbers using for loop in Java.

Solution:

Factorial of a number (N) is the product of all the numbers from 1 to N.

Here is the program.

public class FactorialEvenNum {

public static void main(String[] args) {

double p=1.0;

for(int i=1;i<=40;i++)

{

p*=i;

if (i%2==0)

System.out.println("Factorial of "+i+" is: "+p);

}

}

}

Here p calculates the factorial and it is displayed only if the number is even (as said in question, first 20 even numbers).

Output is attached.