Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 225: | \[{7^{225}-1\over6}\] | 32 × 19 × 31 × 37 × 1063 × 2551 × 2801 × 8101 × 29251 × 159871 × 1527007411 × 1708445701 × 125096112091<12> × 31280679788951<14> × 121257418374086998051<21> × 217648180992721729506406538251<30> × 20297781182169478546946347835701<32> × 7576490887465361330520148519214716951<37> |