An image sent through a direct message that was then saved to a device. How to Identify the Content
The _n at the end usually indicates the size or "version" of the image (e.g., "normal" or "large" resolution). Common Contexts for This File This specific file is likely one of the following:
Because these filenames are generated as unique identifiers for specific uploads, they don't contain descriptive keywords. However, Anatomy of the Filename
Upload the image to Google Images or TinEye. This will likely link you back to the original Facebook post or the website it was sourced from.