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Erdős problem / erdos

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Problem 681

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  1. vf_70d40c2f2b52f721

    theoretical

    Erdős Problem #681: declared status 'open'. Formalized: yes. Is it true that for all large nn there exists kk such that n+kn+k is composite andp(n+k)>k2,p(n+k)>k^2,where p(m)p(m) is the least prime factor of mm? Prize: no. OEIS: A389680. Tags: number theory, primes.

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