Android GCM SENDER_ID, how to get it?

Question

I try to migrate to GCM and I have an issue with the SENDER_ID I need to provide. I use the demo project from google. In this project I need, if I

Answer 1

the SENDER_ID you are using is nothing but the authorization key. you can find the SENDER_ID at your projects Google APIs Console pages URL

https://code.google.com/apis/console/#project:8543162367

here 8543162367 will be your SENDER_ID , and also the Project Id is no longer numeric its alpha-numeric or only numeric or only alphabetic anything but its position is same as shown by me