How to generate more than 5 random prime number

Asked Jul 25 '15 at 01:35

Active Jul 25 '15 at 17:08

Viewed 392 times

Apparently I am able to generate prime numbers from a given range and display them,today I was trying to add,multiply and subtract prime numbers without displaying all of them but rather by using a random generator to pick more than 5 random prime numbers and add them or subtract or multiply from a given range of 2-500. I have searched and i found this post but it doesn't answer my question. The rest I found are done in other languages. I don't want to have an array of the primes done manually.

Code;

for ( count = 2 ; count <= n ;  )
   {
      for ( c = 2 ; c <= i - 1 ; c++ )
      {
         if ( i%c == 0 )
            break;
      }
      if ( c == i )
      {
         printf("%d\n",i);
         count++;
      }
      i++;

I really need help on how i can generate more than 5 random prime numbers and +,-,* to get an answer..

edited May 23 '17 at 11:46

Community

asked Jul 25 '15 at 01:35

Madona wambua

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Generate 5 random indices, and then use them to index into the sequence of prime numbers. – Oliver Charlesworth Jul 25 '15 at 01:37
possible duplicate of [Most elegant way to generate prime numbers](http://stackoverflow.com/questions/1042902/most-elegant-way-to-generate-prime-numbers) – Gabriel Jul 25 '15 at 15:25
That's in C#? I wanted it In c. – Madona wambua Jul 25 '15 at 17:06

How to generate more than 5 random prime number

0 Answers0