This table was printed in Sam Yates’ “Repunits and Repetends,” Library of Congress Catalog Card Number 82-50241, 1982.

KNOWN PRIMES WITH 1000 OR MORE DIGITS

A(k, n) = k · 2^{n} + 1 B(k, n) = k · 2^{n} − 1
PRIME  DIGITS  PRIME  DIGITS
1. B(1,4497)  13395  29. A(8543,5793)  1748
2. B(1,23209)  6987  30. A(9,5802)  1748
3. B(1,21701)  6533  31. B(9,5589)  1684
4. B(1,19937)  6002  32. A(29,5443)  1640
5. B(3,12676)  3817  33. A(17,5355)  1614
6. B(9,11547)  3477  34. A(7493,5249)  1584
7. A(70105125,11202)  3380  35. B(3,5154)  1546
8. B(1,11213)  3376  36. A(7957,5064)  1529
9. A(103858755,9952)  3004  37. A(29,4727)  1425
10. A(62672610,9920)  2995  38. A(5,4687)  1412
11. B(1,9941)  2993  39. A(6319,4606)  1391
12. A(2897,9715)  2928  40. B(1,4423)  1332
13. B(1,9689)  2917  41. B(1,4253)  1281
14. A(9323,3013)  911  42. B(3,4202)  1267
15. B(9,8007)  2412  43. A(25,3938)  1187
16. A(9,7967)  2400  44. A(23,3029)  1185
17. B(9,7939)  2391  45. A(3,3912)  1179
18. A(29,7927)  2388  46. A(25,3904)  1177
19. A(27,7639)  2301  47. A(15,3888)  1172
20. B(3,7559)  2276  48. A(9,3690)  1112
21. A(17,7311)  2203  49. A(29,3627)  1094
22. A(7,6614)  1992  50. A(256200945,3426)  1040
23. A(17,6539)  1970  51. B(256200945,3426)  1040
24. A(27,6419)  1934  52. A(9,3417)  1030
25. A(383,6393)  1928  53. A(9,3354)  1011
26. A(5,5947)  1791  54. A(9,3349)  1010
27. B(9,5893)  1775  55. A(27,3322)  1002
28. B(9,5815)  1752  56. A(25,3314)  1000

Date: 1982, Star Publishing Co, Inc., Boynton Beach, Florida 33435.