Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 238: | \[{10^{238}-1\over9}\] | 11 × 103 × 239 × 4013 × 4649 × 909091 × 923441 × 2071723 × 1868879293 × 5363222357<10> × 21993833369<11> × 3924966376871<13> × 5673320472670315859129<22> × 768736559421401249042753476963<30> × 323012942148562751650814544437350454640448842187<48> × 103746647830421551242486430622636901002236971549990724717454338463<66> |