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Composite numbers whose multiplicative digital root is 8.
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%I #10 Mar 30 2012 19:00:28

%S 8,18,24,36,38,42,46,49,63,64,66,76,77,81,88,92,94,99,118,124,129,136,

%T 138,142,146,164,166,176,177,183,188,192,194,214,219,222,226,234,236,

%U 237,243,248,262,273,284,291,292,316,318,323,324,326,327,332,334,339

%N Composite numbers whose multiplicative digital root is 8.

%C Complement of A201022 with respect to A034055.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/MultiplicativeDigitalRoot.html">Multiplicative Digital Root</a>

%F Composite number 124 is in the sequence because 1*2*4=8.

%Y Cf. A201022 (primes whose multiplicative digital root is 8), A034055 (numbers whose multiplicative digital root is 8).

%K nonn,base

%O 1,1

%A _Jaroslav Krizek_, Nov 25 2011