C# Program to find Product of 2 Numbers using Recursion

This C# Program finds Product of 2 Numbers using Recursion. Here the multiples of 3 and 5 are found and the sum of all the multiples are calculated and are displayed.

Here is source code of the C# Program to find Product of 2 Numbers using Recursion. The C# program is successfully compiled and executed with Microsoft Visual Studio. The program output is also shown below.

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/*
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 * C# Program to find Product of 2 Numbers using Recursion

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 */
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using System;
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class program
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{
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    public static void Main()
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    {
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        int a, b, result;
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        Console.WriteLine("Enter two numbers to find their product: ");

        a = int.Parse(Console.ReadLine());

        b = int.Parse(Console.ReadLine());

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        prog pg = new prog();
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        result = pg.product(a, b);
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        Console.WriteLine("Product of {0} and {1} is {2}",a, b, result);

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        Console.ReadLine();
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    }
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}
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class prog
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{
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    public int product(int a, int b)
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    {
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        if (a < b)
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        {
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            return product(b, a);
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        }
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        else if (b != 0)
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        {
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            return (a + product(a, b - 1));

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        }
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        else
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        {
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            return 0;
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        }
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    }
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}
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Here is the output of the C# Program:

Enter two numbers to find their product:
5
6
Product of 5 and 6 is 30

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