Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 97: | \[{10^{97}-1\over9}\] | 12004721 × 846035731396919233767211537899097169<36> × 109399846855370537540339266842070119107662296580348039<54> |