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Difference between revisions of "Riesel prime 2 1"

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(updates & add Woodall reference)
(add near Woodall base 4 reference)
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3;T:W;C:'''[[M2]]''', {{NWo|2}}, {{NWo|8|1}}
 
3;T:W;C:'''[[M2]]''', {{NWo|2}}, {{NWo|8|1}}
 
5;C:'''[[M3]]''', {{NWo|+|3}}, {{NWo|4|2}}, {{NWo|32|1}}
 
5;C:'''[[M3]]''', {{NWo|+|3}}, {{NWo|4|2}}, {{NWo|32|1}}
−
7;C:'''[[M4]]''', {{NWo|-|5}}, {{NWo|8|2}}, {{NWo|128|1}}
+
7;C:'''[[M4]]''', {{NWo|-|5}}, {{NWo|-|4|3}}, {{NWo|8|2}}, {{NWo|128|1}}
 
13;C:'''[[M5]]''', {{NWo|64|2}}, {{NWo|8192|1}}
 
13;C:'''[[M5]]''', {{NWo|64|2}}, {{NWo|8192|1}}
 
17;C:'''[[M6]]''', {{NWo|256|2}}, {{NWo|131072|1}}
 
17;C:'''[[M6]]''', {{NWo|256|2}}, {{NWo|131072|1}}

Revision as of 04:32, 14 January 2025

Reserved! This sequence is currently reserved by: GIMPS

Current data

k , b : 1 , 2
Type : Low
Count : 52
Nash : 925
Max n : 124,817,431
Date : 2024-10-31
Reserved : GIMPSGIMPS/Reserved
2[1], 3[2], 5[3], 7[4], 13[5], 17[6], 19[7], 31[8], 61[9], 89[10], 107[11], 127[12], 521[13], 607[14], 1279[15], 2203[16], 2281[17], 3217[18], 4253[19], 4423[20], 9689[21], 9941[22], 11213[23], 19937[24], 21701[25], 23209[26], 44497[27], 86243[28], 110503[29], 132049[30], 216091[31], 756839[32], 859433[33], 1257787[34], 1398269[35], 2976221[36], 3021377[37], 6972593[38], 13466917[39], 20996011[40], 24036583[41], 25964951[42], 30402457[43], 32582657[44], 37156667[45], 42643801[46], 43112609[47], 57885161[48], 74207281[49], 77232917[50], 82589933[51], 136279841[52]
Remarks :
For this k-value these are the Mersenne primes. All exponents n < 70,202,087 have been verified.
The sequence A000043 in OEIS
See also Williams 2n-1

Notes

  1. Jump up ↑ Sophie Germain n=2, Twin n=2, M1, Near Woodall 2•21-1, Near Woodall 1•22-1, Woodall 41-1
  2. Jump up ↑ Woodall, M2, Woodall 2•22-1, Woodall 81-1
  3. Jump up ↑ M3, Near Woodall 4•23-1, Woodall 2•42-1, Woodall 321-1
  4. Jump up ↑ M4, Near Woodall 4•25-1, Near Woodall 2•43-1, Woodall 2•82-1, Woodall 1281-1
  5. Jump up ↑ M5, Woodall 2•642-1, Woodall 81921-1
  6. Jump up ↑ M6, Woodall 2•2562-1, Woodall 1310721-1
  7. Jump up ↑ M7, Near Woodall 16•215-1, Woodall 2•5122-1, Woodall 8•48-1, Woodall 2•5122-1, Woodall 5242881-1
  8. Jump up ↑ M8, Woodall 2•327682-1
  9. Jump up ↑ M9
  10. Jump up ↑ M10
  11. Jump up ↑ M11, Woodall 8•81928-1
  12. Jump up ↑ M12
  13. Jump up ↑ Woodall, M13, Woodall 512•2512-1
  14. Jump up ↑ M14
  15. Jump up ↑ M15
  16. Jump up ↑ M16
  17. Jump up ↑ M17
  18. Jump up ↑ M18
  19. Jump up ↑ M19
  20. Jump up ↑ M20
  21. Jump up ↑ M21
  22. Jump up ↑ M22
  23. Jump up ↑ M23
  24. Jump up ↑ M24
  25. Jump up ↑ M25
  26. Jump up ↑ M26
  27. Jump up ↑ M27
  28. Jump up ↑ M28
  29. Jump up ↑ M29
  30. Jump up ↑ M30
  31. Jump up ↑ M31
  32. Jump up ↑ M32
  33. Jump up ↑ M33
  34. Jump up ↑ M34
  35. Jump up ↑ M35
  36. Jump up ↑ M36
  37. Jump up ↑ M37
  38. Jump up ↑ M38
  39. Jump up ↑ M39
  40. Jump up ↑ M40
  41. Jump up ↑ M41
  42. Jump up ↑ M42
  43. Jump up ↑ M43
  44. Jump up ↑ M44
  45. Jump up ↑ M45
  46. Jump up ↑ M46
  47. Jump up ↑ M47
  48. Jump up ↑ M48
  49. Jump up ↑ M49
  50. Jump up ↑ M50
  51. Jump up ↑ M51
  52. Jump up ↑ M52

See also

Retrieved from "https://www.rieselprime.de/z/index.php?title=Riesel_prime_2_1&oldid=37091"