Henry Ernest Dudeney/Modern Puzzles/94 - Adding their Cubes/Historical Note

Historical Note on Modern Puzzles by Henry Ernest Dudeney: $94$ - Adding their Cubes

Martin Gardner, in his $1968$ repackaging 536 Puzzles & Curious Problems, points out the overlooked $371$, then refers to Joseph S. Madachy's Mathematics on Vacation from $1966$, where the general pluperfect digital invariant is discussed.

Sources

• 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Answers: $143$. Adding their Cubes