Bingo cards - probability of duplication?

70*69*68*67 and so on until you are multiply 24 numbers together. That will give you the odds of having two card exactly the same. But the odds of two people having bingo at the same time would be much much less, since there are many ways bingo can be achieved. Anyone who has ever been to bingo can tell you, two people winning at the same time is not uncommon.