Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
solve [ n!/((n-16)!*(16!)) * product from i to 16 ((16-i+1)/16)=.9 ]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random