1:  print "Enter start range"
    2:  read start
    3:  check the end range, it should be greater than start, otherwise
        inform the user to enter again
    4:  set correctInput equal to false
    5:  while (correctInput equal to false)
    6:    begin
    7:       print "Enter end range : "
    8:       read end;
    9:       if (end > start)
    10:        set correctInput equal to true
    11:      end_if
    12:    end
    13:  set counter equal to start
    14:  while (counter less than or equal to end)
    15:    begin
    16:      set limit equal to square root of counter
    17:      set denum equal to 2
    18:      set isPrime equal to true
    19:      while (denum is less than or equal to limit)
    20:        begin
    21:          if (counter modulos denum equal to zero)
    22:             set isPrime equal to false
    23:          end_if
    24:          increment denum by 1;
    25:        end_while
    26:      if (isPrime)
    27:        print(counter)
    28:      increment counter by 1
    29:    end_while