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Proth primes of the form 25•2n+1

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Current data

k , b : 25 , 2
Count : 46
Nash : 2198
Max n : 9,000,000
Date : 2022-09-21
2, 4[1], 6[2], 10[3], 20, 22, 52[4], 64[5], 78[6], 184[7], 232[8], 268, 340[9], 448[10], 554, 664[11], 740[12], 748[13], 1280[14], 1328[15], 1640[16], 3314[17], 3904[18], 3938[19], 5152[20], 9522, 57488[21], 66872[22], 148060[23], 154254[24], 216092[25], 302194[26], 367294[27], 627710[28], 966414[29], 1211488[30], 1258562[31], 1298186, 2141884[32], 2583690, 2927222[33], 3733144[34], 4481024[35], 8456828[36], 8788628[37], 13719266[38]
Remarks :
The sequence A032362 in OEIS
For all n-values 25•2n+1 is a Generalized Fermat number.

Notes

  1. Jump up ↑ Is GF Divisor of xGF(3,3,2)
  2. Jump up ↑ Is GF Divisor of xGF(4,9,2)
  3. Jump up ↑ Is GF Divisor of xGF(8,9,2)
  4. Jump up ↑ Is GF Divisor of GF(48,10) [+1], Near Cullen 50•251+1
  5. Jump up ↑ Is GF Divisor of xGF(63,6,5)
  6. Jump up ↑ Is GF Divisor of xGF(77,3,2) [+2]
  7. Jump up ↑ Is GF Divisor of xGF(183,5,3) [+1]
  8. Jump up ↑ Is GF Divisor of xGF(230,9,2)
  9. Jump up ↑ Is GF Divisor of xGF(338,9,5)
  10. Jump up ↑ Is GF Divisor of xGF(439,5,2) [+2]
  11. Jump up ↑ Is GF Divisor of xGF(662,7,2) [+1]
  12. Jump up ↑ Is GF Divisor of xGF(738,9,8) [+1]
  13. Jump up ↑ Is GF Divisor of xGF(742,5,2) [+1]
  14. Jump up ↑ Is GF Divisor of xGF(1278,9,8) [+1]
  15. Jump up ↑ Is GF Divisor of xGF(1324,12,11)
  16. Jump up ↑ Is GF Divisor of xGF(1638,7,3) [+1]
  17. Jump up ↑ Is GF Divisor of xGF(3312,11,8)
  18. Jump up ↑ Is GF Divisor of GF(3903,6) [+2]
  19. Jump up ↑ Is GF Divisor of xGF(3934,12,11)
  20. Jump up ↑ Is GF Divisor of GF(5147,10)
  21. Jump up ↑ Is GF Divisor of xGF(57484,5,2) [+2]
  22. Jump up ↑ Is GF Divisor of xGF(66871,4,3) [+1]
  23. Jump up ↑ Is GF Divisor of xGF(148059,7,6) [+1]
  24. Jump up ↑ Is GF Divisor of xGF(154252,7,3) [+1]
  25. Jump up ↑ Is GF Divisor of xGF(216091,11,10)
  26. Jump up ↑ Is GF Divisor of xGF(302187,8,5)
  27. Jump up ↑ Is GF Divisor of xGF(367288,8,5)
  28. Jump up ↑ Is GF Divisor of xGF(627709,3,2) [+1]
  29. Jump up ↑ Is GF Divisor of xGF(966412,11,5)
  30. Jump up ↑ Is GF Divisor of GF(1211487,12)
  31. Jump up ↑ Is GF Divisor of xGF(1258561,7,2)
  32. Jump up ↑ Is GF Divisor of F(2141872) [+5]
  33. Jump up ↑ Is GF Divisor of xGF(2927219,7,6) [+1]
  34. Jump up ↑ Is GF Divisor of xGF(3733139,8,5) [+1]
  35. Jump up ↑ Is GF Divisor of xGF(4481020,8,5) [+1]
  36. Jump up ↑ Is GF Divisor of GF(8456827,12)
  37. Jump up ↑ Is GF Divisor of xGF(8788627,11,4)
  38. Jump up ↑ Is GF Divisor of xGF(13719265,7,5) [+2]

History

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