A187516 Numbers divisible by at least two of their digits, different and >1.
24, 36, 48, 124, 126, 128, 132, 135, 162, 168, 175, 184, 204, 208, 216, 224, 234, 240, 244, 246, 248, 250, 264, 273, 276, 280, 284, 288, 306, 312, 315, 324, 328, 336, 342, 345, 348, 357, 360, 366, 369, 372, 375, 378, 384, 396, 408, 412, 420, 424, 426, 428, 432, 435, 448, 452, 456, 462, 468, 472, 476, 480, 488, 492, 495, 520, 524, 528, 540, 564, 584, 612, 624, 630, 636, 639, 642, 648
Offset: 1
Links
- Amiram Eldar, Table of n, a(n) for n = 1..10000
Programs
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Mathematica
s={};Do[un=Select[Union[IntegerDigits[n]],#>1&];cnt=0;Do[d=un[[k]];If[Mod[n,d]==0,cnt++;If[cnt>1,AppendTo[s,n];Goto[ne]]],{k,Length@un}];Label[ne],{n,10000}];s dtdQ[n_]:=Total[Boole[Divisible[n,Union[Select[IntegerDigits[n], #>1&]]]]]>1; Select[Range[700],dtdQ] -
PARI
is(n)=my(d=Set(digits(n))); sum(i=1,#d, d[i]>1 && n%d[i]==0)>1 \\ Charles R Greathouse IV, Feb 11 2017
Comments