Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 198: | \[{15^{198}-1\over14}\] | 24 × 19 × 23 × 67 × 199 × 211 × 241 × 463 × 541 × 739 × 811 × 859 × 2333 × 5347 × 8537 × 21061 × 55243 × 18421129 × 3055718821 × 23504771357<11> × 62475406423<11> × 135088596919<12> × 4969143820807<13> × 1741078786797952487623<22> × 62387033227922102074789096981<29> × 160820182382287626017490443033251<33> × 71472830417465766173099456354984223218647<41> |