Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 108: | \[{15^{108}-1\over14}\] | 25 × 13 × 19 × 37 × 109 × 113 × 211 × 241 × 541 × 739 × 811 × 3877 × 21061 × 16354441 × 284329009 × 829049498029<12> × 2560392206677<13> × 3506657472973<13> × 1477891879996957031251<22> × 3000251475702847870957<22> |