Composite and every divisor (except 1) contains the digit 8.

Terms

a(0) =6889a(1) =7387a(2) =23489a(3) =25187a(4) =31789a(5) =32287a(6) =34087a(7) =48721a(8) =50861a(9) =56689a(10) =60787a(11) =68143a(12) =68309a(13) =68641a(14) =68807a(15) =73289a(16) =73781a(17) =76807a(18) =78053a(19) =78409a(20) =78587a(21) =78943a(22) =78961a(23) =80089a(24) =81589a(25) =87487a(26) =88147a(27) =98023a(28) =98521a(29) =106489