|
Near Cullen Primes, 1st Kind
Term: ( n − 1 ) • 2n + 1 Total: 25 References: Steven Harvey |
||||
| # | Number | Digits | When | Who |
|---|---|---|---|---|
| 25 | 660987 • 2660988 + 1 | 198984 | Feb 2010 | Steven Harvey |
| 24 | 534506 • 2534507 + 1 | 160909 | May 2009 | Steven Harvey |
| 23 | 460574 • 2460575 + 1 | 138653 | Nov 2008 | Steven Harvey |
| 22 | 373346 • 2373347 + 1 | 112395 | Sep 2007 | Steven Harvey |
| 21 | 338484 • 2338485 + 1 | 101900 | Mar 2005 | Steven Harvey |
| 20 | 153427 • 2153428 + 1 | 46192 | Steven Harvey | |
| 19 | 133927 • 2133928 + 1 | 40322 | Steven Harvey | |
| 18 | 89730 • 289731 + 1 | 27017 | Anonymous | |
| 17 | 88650 • 288651 + 1 | 26692 | Jo Yeong Uk | |
| 16 | 61626 • 262627 + 1 | 18557 | Anonymous | |
| 15 | 57003 • 257004 + 1 | 17165 | Steven Harvey | |
| 14 | 36390 • 236391 + 1 | 10960 | Mike Oakes | |
| 13 | 32604 • 232605 + 1 | 9820 | Mike Oakes | |
| 12 | 20802 • 220803 + 1 | 6267 | Mike Oakes | |
| 11 | 10884 • 210885 + 1 | 3281 | Henri Lifchitz | |
| 10 | 8667 • 28668 + 1 | 2614 | Mike Oakes | |
| 9 | 1482 • 21483 + 1 | 450 | ||
| 8 | 1470 • 21471 + 1 | 446 | ||
| 7 | 80 • 281 + 1 | 27 | ||
| 6 | 54 • 255 + 1 | 19 | ||
| 5 | 50 • 251 + 1 | 18 | ||
| 4 | 26 • 227 + 1 | 10 | ||
| 3 | 6 • 27 + 1 | 3 | ||
| 2 | 2 • 23 + 1 | 2 | ||
| 1 | 1 • 22 + 1 | 1 |
|
Near Cullen Primes, 2nd Kind
Term: ( n + 1 ) • 2n + 1 Total: 29 References: Steven Harvey |
||||
| # | Number | Digits | When | Who |
|---|---|---|---|---|
| 29 | 709947 • 2709946 + 1 | 213721 | Jun 2010 | Steven Harvey |
| 28 | 247039 • 2247038 + 1 | 74372 | Jun 2004 | Steven Harvey |
| 27 | 96750 • 296749 + 1 | 29130 | Kazuyoshi Asao | |
| 26 | 85375 • 285374 + 1 | 25706 | Henri Lifchitz | |
| 25 | 26563 • 226562 + 1 | 8001 | ||
| 24 | 21338 • 221337 + 1 | 6428 | ||
| 23 | 20965 • 220964 + 1 | 6316 | ||
| 22 | 20961 • 220960 + 1 | 6314 | ||
| 21 | 10179 • 210178 + 1 | 3068 | ||
| 20 | 7944 • 27943 + 1 | 2395 | ||
| 19 | 7554 • 27553 + 1 | 2278 | ||
| 18 | 2766 • 22765 + 1 | 836 | ||
| 17 | 1824 • 21823 + 1 | 553 | ||
| 16 | 1479 • 21478 + 1 | 449 | ||
| 15 | 1326 • 21325 + 1 | 402 | ||
| 14 | 867 • 2866 + 1 | 264 | ||
| 13 | 446 • 2445 + 1 | 137 | ||
| 12 | 295 • 2294 + 1 | 91 | ||
| 11 | 187 • 2186 + 1 | 59 | ||
| 10 | 134 • 2133 + 1 | 43 | ||
| 9 | 115 • 2114 + 1 | 37 | ||
| 8 | 87 • 286 + 1 | 28 | ||
| 7 | 67 • 266 + 1 | 22 | ||
| 6 | 66 • 265 + 1 | 22 | ||
| 5 | 27 • 226 + 1 | 22 | ||
| 4 | 14 • 213 + 1 | 5 | ||
| 3 | 7 • 26 + 1 | 3 | ||
| 2 | 6 • 25 + 1 | 3 | ||
| 1 | 3 • 22 + 1 | 2 |