Thread: 512
View Single Post
Old 2020-06-14, 11:44   #3
paulunderwood's Avatar
Sep 2002
Database er0rr

103748 Posts

Originally Posted by enzocreti View Post
Is 512 the only cube with the property that if the digits are reversed, the reverse 215 is a cube minus one?
If you allow for leading zeroes to removed there are infinite many solutions:

(8*10^n)^3 == 512*10^(3*n). Reversed it is 000...000215 which is 1 fewer than 6^3
paulunderwood is offline   Reply With Quote