answer:There is only a limited number of possible combinations. (granted, in this case over 175 million possible combinations. If you bet on 1 of those combinations, you have a 1 in 175 million chance of winning. If you bet on 2 of those combinations, you have a 2 in 175 million chance of winning, which is double the probability of just betting on one. So if you buy 500 tickets instead of just one, you increased your chances of winning by a factor of 500. So in that sense, you do increase your odds by buying multiple tickets. Mind you, it would still be just a 500 in 175 million chance, so in a practical sense, your chances only improve by a tiny fraction.