If you go on to the national lottery website, it will tell you the most frequently drawn numbers.
The fact that the machine, it's parts, or the balls, could change at any time could also skew probabilities over time. Still, the slight degree to which the lottery machine exerts any sort of non-random bias in number picks is probably insignificant in its affect of the expected value of a ticket. If it wasn't, you could bet your pants that we'd have some incredibly rich statisticians walking around.
The original post refers to the National Lottery in the UK, and a link is provided to the page where the most frequently (and least frequently) drawn numbers can be reviewed.
For Australian lotteries, you can see current statistics for the most frequently drawn numbers at the link below. Just click on the "Statistics" link in the right-hand side meny.