Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 123: | \[{11^{123}-1\over10}\] | 7 × 19 × 83 × 1231 × 27061 × 174907 × 509221 × 14092193 × 28385941 × 29866451 × 840139875599<12> × 142971820992006871646588679396397417<36> × 262535239929018061575878552691659119<36> |