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Erdős problem 971

Let p(a, d) be the least prime congruent to a (mod d). Does there exist a constant c > 0 such that for all large d, p(a, d) > (1 + c) * φ(d) * log d for ≫ φ(d) many values of a?

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Problem row
sha256:6afda450d5448b17896b09f9e7a078d53f341f331c0e6b1d8c67ddcc98c933ee
Metadata
sha256:29455ffc6c89d69e92086cc4e10fd49b18087d24032829bbd618ad675907cee7
Observation
sha256:8c823d621b7e1256c8e47c60a5f1c54c016a5507e6f27b2bab537f6f5f232067
Content
sha256:f5dba96d06281295eb70f4ec4e773c3ece8462e0613eeeffb1cd4d71567b65f8
Repository
sha256:a956b84c437202e5a02cc9e036a621bd14a302b34a75758115730bdbb77c52a4
Projection
sha256:c9d14c459c518937e758918b5897dc3b22f1a55f07739afe99502f5b046c907a
Source commit
2415f78e850aeee50afdca525c6f2e0ea606f207

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