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Filtering solutions in PowerRepresentations

Discussion in 'Mathematics' started by Jan, Aug 1, 2020.

  1. Jan

    Jan Guest

    I have the following code:

    PowersRepresentations[10400, 7, 2]


    This produces Length[PowersRepresentations[10400, 7, 2]]=433789 number of solutions. Now I want to filter in those solutions, the filter must remove the solutions when it does not exist of distinct integers (so for example $\left\{35, 35, 35, 36, 38, 41, 48\right\}$ must be removed because the number $35$ is used three times) and all the integers must be bigger than zero (so for example $\left\{0, 0, 0, 0, 0, 20, 100\right\}$ must be removed because the number $0$ is used and it is used five times). How do I code that?

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