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Proth primes of the form 31•2n+1

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Reserved! This sequence is currently part of Multi Reservation 20: Riesel problem 3.

Current data

k , b : 31 , {{{Pb}}}
Count : 12
Nash : 839
Max n : 2,000,000
Date : 2024-09-06
Reserved : Alexander JonesAlexander Jones/Reserved
8, 60, 68, 140[1], 216[2], 416, 1808, 1944, 9096, 76596, 93168, 8348000

[[Category:Proth {{{Pb}}}|#.....00031]][[Category:Proth {{{Pb}}} Low-weight|#.....00031]]

Notes

  1. Divides GF(139,3)
  2. Divides GF(215,12)

History