A084988 Numbers made with nonprime digits such that the sum of the digits is also not prime.

1, 4, 6, 8, 9, 10, 18, 19, 40, 44, 46, 48, 60, 64, 66, 68, 69, 80, 81, 84, 86, 88, 90, 91, 96, 99, 100, 108, 109, 114, 116, 118, 141, 144, 149, 161, 168, 169, 180, 181, 186, 189, 190, 194, 196, 198

Offset: 1

Author

Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jun 27 2003

Keywords

• nonn
• base

Examples

			E.g. 46 is not prime and 4+6 =10 is also not prime.
		

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..5000

Crossrefs

Cf. A084984.

Programs

Mathematica

Select[Rest[FromDigits/@Tuples[{0,1,4,6,8,9},3]],!PrimeQ[ Total[ IntegerDigits[ #]]]&] (* Harvey P. Dale, Jul 20 2017 *)