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erdos_939.variants.examples

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Cambie has found several examples of the sum of $r - 2$ coprime $r$-powerful numbers being itself $r$-powerful. For example when $r=5$ we have $$3761^5=2^8\cdot3^{10}\cdot 5^7 + 2^{12}\cdot 23^6 + 11^5\cdot 13^5$$.

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Lean 4 Statement 
theorem erdos_939.variants.examples : (∃ r ≥ 4, (Erdos939Sums r).Nonempty)
ID: ErdosProblems__939__erdos_939.variants.examples
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