Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 237: | \[{11^{237}-1\over10}\] | 7 × 19 × 317 × 185277551100523662054683911<27> × 34273461979846373350261832761<29> × 31705898389348622756718888962810730367411163041955447<53> × 76073717430958505935191635305499025957231051925181611287921878660545135317918582906146964122007561713575824833444234350057054844871121<134> |