According to another wikipedia article https://en.wikipedia.org/wiki/List_of_islands_of_the_British_Isles UK (plus Ireland) has 51 or 52 inhabited islands and that's only counting the ones around the British Isles, ignoring Bermuda, UK possessions in the Caribbean, S. Atlantic, Indian and Pacific Oceans. Only a few of these are in Ireland so with the territories included, I guess UK might actually be in triple figures for inhabited islands.