A chart labeled "Gang Sizes According to Wikipedia". The smallest size with the highest number of gangs is 4, with 19 different gangs. 8 has 6 gangs, 6 has 3 gangs, and 7, 9, 10, 12, 14, 19, 20, 22, 25, and 500 all have one gang
https://us-southeast-1.linodeobjects.com/teh-entar-net-mastodon-media/media_attachments/files/111/485/159/334/338/446/original/938437c3a3af2bc3.png