Composite numbers whose multiplicative persistence is 7.

Terms

a(0) =68889a(1) =68898a(2) =68988a(3) =69888a(4) =86889a(5) =86898a(6) =86988a(7) =88689a(8) =88698a(9) =88869a(10) =88896a(11) =88968a(12) =88986a(13) =89688a(14) =89868a(15) =89886a(16) =96888a(17) =98688a(18) =98868a(19) =98886a(20) =168889a(21) =168898a(22) =168988a(23) =169888a(24) =186898a(25) =186988a(26) =188689a(27) =188698a(28) =188896a(29) =188968