This is to correct the calculations presented by Don Payne.
Payne's calculations are correct only under the following terms of reference: the same number can be chosen more than once; the chosen six numbers must be in a particular order.
The actual requirements (praise the lotto gods) are: a number can be chosen only once and the six numbers chosen can be in any order. Therefore, the number of ways (or combinations) in which 6 numbers could be drawn from 49 is:
494847464544 = 13,983,816
654321 Any chances of my paying off the mortgage on my house and taking my wife out to dinner are therefore, on any 1 ticket, about 1 in 14 million -- not the 14 billion Payne has proffered.