Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 192: | \[{15^{192}-1\over14}\] | 29 × 13 × 17 × 97 × 113 × 193 × 211 × 241 × 257 × 1489 × 2689 × 3169 × 3877 × 7121 × 91297 × 179953 × 1659649 × 1248882721 × 2562840001 × 4151706817 × 1391359510721<13> × 12779004583099009<17> × 5765807395792521302977<22> × 4871829138071848601730474137089<31> × 2323039494547285131093389476979268943602323873692962834628974721<64> |