I have to print prime factors of 34568654219. But the code is not showing the desired result. Can anyone point out why ?

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.NET3.0

C#

long num = 34568654219 ;
         long i ;
         int count = 0 ;



         for (long j = 3; j < num; j++)
         {

             for (i = 2; i < j; i++)
             {
                 if ((j % i) != 0)
                 {
                     count++;

                 }


                 if ((num % j) == 0)
                 {
                     count++;


                 }
             }

             if (count == 2)
             {
                 Console.WriteLine("the prime factors of 600851475143 are : " + j);


             }



             count = 0 ;

         }




         Console.ReadLine();

Posted 19-Jun-13 16:20pm

Allwin456

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Sushil Mate · Accepted Answer · 2013-06-19T18:22:00

Try this one. Hope it helps.

C#

int a, b;
Console.WriteLine("Please enter your integer: ");
a = int.Parse(Console.ReadLine());
for (b = 2; a > 1; b++)
    if (a % b == 0)
    {
        int x = 0;
        while (a % b == 0)
        {
            a /= b;
            x++;
        }
        Console.WriteLine("{0} is a prime factor {1} times!", b, x);
    }