When the U.K. lottery launched you picked 6 from 49.

The prizes were shared amongst everyone

If the prize pot was say £10m, 4 winners would get £2.5m each.

I suspect that the hunebr of people choosing 123456 would be far higher than choosing 6 random numbers. Thus in the event your numbers did come up, you would get far less winning than someone who had the same odds but chose say 13 22 32 35 40 42