Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 405: | \[{10^{405}-1\over9}\] | 34 × 31 × 37 × 41 × 163 × 271 × 757 × 9397 × 21871 × 61561 × 238681 × 333667 × 1577071 × 2462401 × 2906161 × 5222071 × 16357951 × 40435201 × 310362841 × 258360989311<12> × 440334654777631<15> × 676421558270641<15> × 4185502830133110721<19> × 130654897808007778425046117<27> × 483418418597220677238517353915231961831<39> × 250093532125526915278352940802333503335240107302499957158939577140544111<72> × 14064388510567918931415103718536341889449837765445863106535952877209149111639559724304775413009931280562293699174624824991<122> |