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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Rhonda-numbers/Mathematica/rhonda-numbers.math Normal file
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ClearAll[RhondaNumberQ]
RhondaNumberQ[b_Integer][n_Integer] := Module[{l, r},
l = Times @@ IntegerDigits[n, b];
r = Total[Catenate[ConstantArray @@@ FactorInteger[n]]];
l == b r
]
bases = Select[Range[2, 36], PrimeQ/*Not];
Do[
Print["base ", b, ":", Take[Select[Range[700000], RhondaNumberQ[b]], UpTo[15]]];
,
{b, bases}
]