Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
150: | \[{7^{150}-1\over6}\] | 23 × 3 × 11 × 19 × 31 × 43 × 151 × 191 × 2551 × 2801 × 29251 × 159871 × 6568801 × 6005492312551<13> × 31280679788951<14> × 79787519018560501<17> × 7021370289199888801<19> × 217648180992721729506406538251<30> |