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Proth primes of the form 31•2n+1

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Current data

k , b : 31 , 2
Type : Low
Count : 14
Nash : 839
Max n : 9,000,000
Date : 2021-04-01
8, 60, 68, 140[1], 216[2], 416, 1808, 1944, 9096, 76596, 93168, 4673544[3], 5560820[4], 8348000

Notes

  1. Divides GF(139,3)
  2. Divides GF(215,12)
  3. Divides GF(4673541,7)
  4. Divides GF(5560819,6)

History