Respuesta :

A few are: 81, 72, 45, 54, 27, 63, and 90

Hope that helped:)
TSO
Any of 9's multiples besides 9 and 18 will work.

So: 27, 35, 45, 54 ,63, 72, 81, 90, 99, 108, 117, 126, 135, and so on