You will always be able to view your Facebook page ID by visiting your Facebook page. However, if you need to find your Facebook profile ID, you can use a free Facebook app to discover what it is.

How to find your Facebook ID number and the date you signed up for the social network.

How to Find a Facebook Photo ID. When you upload photos to a Facebook album, each picture is assigned a unique identification number. This photo ID helps you single out an individual picture when ...

Facebook ID numbers were assigned in somewhat sequential order; schools were chunked up in blocks up to 100,000 IDs. Harvard was the first chunk (0-99,999). My number is about 5,500,000.