Sharing LR CC Album problems

Lightroom CC. Sharing an album via link. Why are there arbitrary numbers on the images in the gallery and not file numebrs ? Im workin from the app and not the weblink so there is not corellation fo me to find my clents chosices but to go online to the album and search through the Album nubers and then open then to find the file number. If I  download the image from the Album the file name doesn't accompany the image either?  Am I missing something here when sharing Albums with Clients?  This is a very time consuming method of editing choices with a client.