You're probably right, I never was good at math. Either way the odds don't increase enough for me to spend more than two dollars. Except if I win a small amount then I will risk the proceeds of those winnings.You sure about that?
I'm pretty sure it would be 20:292,200,000... still unbelievably small chance of winning, but a 20x improvement in odds (assuming they're 20 different sets of numbers.
You don't take the number of tickets off the denominator; you add it to the number of chances, the numerator.

