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A228006 Smallest composite numbers with multiplicative digital root value 0 <= n <= 9. 0

%I #16 Aug 09 2013 17:56:32

%S 10,111,12,1113,4,15,6,117,8,9

%N Smallest composite numbers with multiplicative digital root value 0 <= n <= 9.

%Y Cf. A198487, A198378 (smallest prime with multiplicative digital root 0 <= n <= 9).

%K nonn,base,fini,full

%O 0,1

%A _Jaroslav Krizek_, Aug 08 2013

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Last modified April 24 10:53 EDT 2024. Contains 371936 sequences. (Running on oeis4.)