Composite numbers that contain only nonprime digits and whose prime factors contain only nonprime digits.
A383934
Composite numbers that contain only nonprime digits and whose prime factors contain only nonprime digits.
Terms
- a(0) =1111a(1) =1199a(2) =1681a(3) =1691a(4) =1919a(5) =1991a(6) =4141a(7) =4411a(8) =4469a(9) =4499a(10) =4609a(11) =4961a(12) =6109a(13) =6161a(14) =6611a(15) =6649a(16) =6809a(17) =8899a(18) =8989a(19) =9089a(20) =9481a(21) =9691a(22) =10109a(23) =10901a(24) =11009a(25) =11041a(26) =11099a(27) =11419a(28) =11881a(29) =14641
External references
- oeis: A383934