Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 150: | \[{10^{150}-1\over9}\] | 3 × 7 × 11 × 13 × 31 × 37 × 41 × 151 × 211 × 241 × 251 × 271 × 2161 × 4201 × 5051 × 9091 × 21401 × 25601 × 2906161 × 182521213001<12> × 78875943472201<14> × 15763985553739191709164170940063151<35> × 10000099999999989999899999000000000100001<41> |