Recently, I came across the Magic Number. One that you can multiply by any number (from 1 to 9) and after one more multiplication will give you back the initial multiplier you selected.
So, what is the Magic Number?
Well it is 37037
You can try it yourself. Choose a number between 1 and 9 and multiply the Magic Number.
Then, simply multiply the result by 3 and voila!
Links:
[1] http://pulse.veltsos.com/category/it/blogging
[2] http://pulse.veltsos.com/category/perso/general