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.
(69^12 - 69^11 - 136) / (69^11 - 2)
(69^12 - 69^11 - 136) / (69^11 - 2)
Natural Language
Math Input
Extended Keyboard