Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
90: | \[{7^{90}-1\over6}\] | 23 × 32 × 11 × 19 × 31 × 37 × 43 × 191 × 541 × 1063 × 2801 × 117307 × 154351 × 159871 × 295831 × 6568801 × 7777981 × 1527007411 × 125096112091<12> |