27 lines
479 B
Text
27 lines
479 B
Text
function IsGiugaNumber(N: integer): boolean;
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var IA: TIntegerDynArray;
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var I,V: integer;
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begin
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Result:=False;
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if IsPrime(N) then exit;
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GetPrimeFactors(N,IA);
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for I:=0 to High(IA) do
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begin
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V:=N div IA[I] - 1;
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if (V mod IA[I])<>0 then exit;
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end;
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Result:=True;
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end;
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procedure ShowGiugaNumbers(Memo: TMemo);
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var I,Cnt: integer;
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begin
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Cnt:=0;
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for I:=4 to High(integer) do
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if IsGiugaNumber(I) then
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begin
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Inc(Cnt);
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Memo.Lines.Add(IntToStr(I));
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if Cnt>=4 then break;
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end;
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end;
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