Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 352: | \[{15^{352}-1\over14}\] | 28 × 17 × 23 × 67 × 89 × 113 × 257 × 353 × 463 × 617 × 1489 × 2333 × 3697 × 7121 × 8537 × 9857 × 179953 × 388961 × 23504771357<11> × 5205199887361<13> × 12779004583099009<17> × 62263707129997297<17> × 1285545509619454513<19> × 47416999261373965697<20> × 536554814380116068153<21> × 246299904510720529119049200829083446311681<42> × 1242372349304878460334100748539075308315312809<46> × 117045342807388847019154505615420641007026154406029201<54> × 641379260420449893854691624086139569714778098165150759285480424748458410942964806582635474316169859703969<105> |