zeepickler

Yes, this an example of an odd composite.

As I said 2xy + x + y creates odd composites (numbers that are odd and not prime).

I'm not saying this is prime. I was saying that the other patterns below are prime. However, since I posted this, I found a flaw with the 7 +6n +1 and 7+ 6n + 2 pattern. However, the 5,5+6,5+6+7, etc pattern holds up for up to the numbers I checked. I still have further investigation to do...

Do you remember the days when they had "punch the monkey" ads? This is progress in plain advertising. Also, it's the responsibility of the website owner to be smart. He/she could have spent the effort in finding dinosaur book publishers, but apparently they took the lazy route. As well, the web designer didn't think the ad aspect through -- it's an "oops" on their part. It's not greed, it's poor execution.