Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 297: | \[{15^{297}-1\over14}\] | 67 × 109 × 241 × 463 × 541 × 2333 × 5347 × 8537 × 21061 × 55243 × 16354441 × 62475406423<11> × 829049498029<12> × 4969143820807<13> × 1741078786797952487623<22> × 28670112316794923026775105923<29> × 71472830417465766173099456354984223218647<41> × 1733792962017282527827919209046865000830732951991692319198289993147566708257522680088555132778515669407599557903789379282587007672040629395254701280760405407719727170004817433642598987<184> |