Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 180: | \[{10^{180}-1\over9}\] | 32 × 7 × 11 × 13 × 19 × 31 × 37 × 41 × 61 × 101 × 181 × 211 × 241 × 271 × 2161 × 3541 × 9091 × 9901 × 27961 × 29611 × 52579 × 238681 × 333667 × 2906161 × 3762091 × 4188901 × 39526741 × 999999000001<12> × 8985695684401<13> × 4185502830133110721<19> × 4999437541453012143121<22> × 1105097795002994798105101<25> |