Question 70
How many positive integers $n$ have the property that their representation in base 2 coincides with the representation in base 3 of $2 n$ ?
(A) None
(B) 1
(C) 2
(D) more than 2, but finitely many
(E) infinitely many.
(A) None
(B) 1
(C) 2
(D) more than 2, but finitely many
(E) infinitely many.