Smallest prime with digit product 6^n.

Terms

a(0) =11a(1) =23a(2) =149a(3) =389a(4) =6389a(5) =38669a(6) =89899a(7) =688999a(8) =4998989a(9) =46998899a(10) =288989999a(11) =2688989999a(12) =8889899999a(13) =68898899999