How do I write a simple c++ program to display the first 20 prime numbers

Question

calculate prime numbers

Answer 1

http://www.sololearn.com/app/sololearn/playground/c29xjtu1oggH/

Answer 2

Please take a look to my code:
https://code.sololearn.com/c8gjJwr0o455/?ref=app
You need only to loop until you find 20 primes.