Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 305: | \[{11^{305}-1\over10}\] | 5 × 3221 × 99431 × 440177 × 23907106086511<14> × 520518327319589<15> × 1461808298382111034194027645506019619578037<43> × 3287044877754412665619847768671022876240079125945118262775420739825609840045693888309802417748927612865479166351906063426581766410235993510487085287022467096703897817131014679128883174925283611873691775395012542455995932810314597561<232> |