Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 200: | \[{10^{200}-1\over9}\] | 11 × 41 × 73 × 101 × 137 × 251 × 271 × 401 × 1201 × 1601 × 3541 × 5051 × 9091 × 21401 × 25601 × 27961 × 60101 × 1676321 × 7019801 × 5964848081<10> × 182521213001<12> × 14103673319201<14> × 78875943472201<14> × 1680588011350901<16> × 129694419029057750551385771184564274499075700947656757821537291527196801<72> |