Composite numbers whose multiplicative persistence is 6.

Terms

a(0) =6788a(1) =6878a(2) =6887a(3) =7688a(4) =7868a(5) =7886a(6) =8678a(7) =8687a(8) =8768a(9) =8786a(10) =8876a(11) =16788a(12) =16878a(13) =16887a(14) =17688a(15) =17868a(16) =17886a(17) =18678a(18) =18687a(19) =18768a(20) =18786a(21) =18867a(22) =18876a(23) =23788a(24) =23878a(25) =24678a(26) =24687a(27) =24768a(28) =24786a(29) =24867