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Riesel primes of the form 9•10n-1
Current data
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Remarks : |
sequence A056725 in OEIS See also Near-repdigit 899...99 Studio Kamada |
Notes
History
- 2021-10-05: Checked n = 1000001 - 1050000, Predrag Kurtovic
- 2020-08-04: Found n = 1762063, Ryan Propper
- 2016-09-19: Found n = 1009567, Predrag Kurtovic
- 2011-04-17: Checked to n = 230000, Gary Barnes
- 2011-01-07: Found n = 383643, David Broadhurst
- 2010-12-19: Found n = 364521, David Broadhurst
- 2010-11-09: Found n = 223871, David Broadhurst
- 2010-11-05: Found n = 260253, David Broadhurst
- 2010-11-04: Found n = 212903, David Broadhurst
- 2004-01-21: Found n = 107663, Jiong Sun
- 2002-01-23: Found n = 41917, Eric J. Sorensen
- 2000-12-10: Found n = 48051, Harvey Dubner
- 2000-10-27: Found n = 41475, Dirk Augustin
- 1994-12-01: Found n = 11143, Harvey Dubner
- 1994-10-01: Found n = 9631, Harvey Dubner
- 1994-10-01: Found n = 8415, Harvey Dubner