Smallest number m such that m and the product of digits of m are both divisible by 7n, or 0 if no such number exists.
A073908
Smallest number m such that m and the product of digits of m are both divisible by 7n, or 0 if no such number exists.
Terms
- a(0) =7a(1) =378a(2) =273a(3) =476a(4) =175a(5) =378a(6) =3577a(7) =728a(8) =1197a(9) =0a(10) =0a(11) =672a(12) =0a(13) =7742a(14) =735a(15) =784a(16) =0a(17) =3276a(18) =0a(19) =0a(20) =7497a(21) =0a(22) =0a(23) =7896a(24) =1575a(25) =0a(26) =7938a(27) =69776a(28) =0a(29) =0
External references
- oeis: A073908