Proof Without Words: Series of Perfect Powers

摘要

The multiset of perfect powers is the collection P = {n~m | n > 1; m > 1}: P = {2~2, 2~3, 24,..., 3~2, 3~3, 3~4,..., 4~2, 4~3, 4~4 ..., 5~2, 5~3, 5~4,...}.