Search Facebook By Image Name. This is a tech video with some trick. Typically when available the search engines may make use of metadata of the image such as the file name of the image date camera used etc.
If you know this number you can use it to find the source of the picture on facebook. In the result section. Try to extend search query by relevant keywords which person could use in the facebook profile section description for example education places current city or favourites.
Check up images tab for a quick preview of the possible matches.
Every image saved from a facebook profile has a unique filename such as 86948 8239343856 5678 n jpg this is a dummy number. Use the facebook id number. Typically when available the search engines may make use of metadata of the image such as the file name of the image date camera used etc. Any images downloaded from facebook will have that numerical id as part of the file name by default.