Hmm, well I'm not the one to ask since this is not my area of expertise, but I'll get you started.
The problem with not picking the same number twice is making sure the computer knows that that number is out once it's been picked. This means you'll have to use some variables. Ideally, you would have a way of "ending" the event or at least resetting it, but you have not told me how this will be implemented, and I'm not sure I'm qualified to code this anyway.
I made a capx to get you started. It will choose a global variable which corresponds to a number, then it will mark that number as zero so it will not be picked next time.
Now, it's not perfect. This is just a start. You'll have to tweak it to work with your game depending on what you need it for.
I set up two boxes to click. One will give you a number until all have been picked. The other box will reset the variables to default values so you can do it again. Set this up however you want in your game. This is just one way of doing it.
Again, this is not my area of expertise, and I have things I need to work on. If you need more help, head to the "how do I" section and ask there. Maybe someone will have a better answer.