Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 341: | \[{19^{341}-1\over18}\] | 683 × 104281 × 1864589 × 20562301 × 62060021 × 36638257099394677<17> × 243270318891483838103593381595151809701<39> × [417434990903384512552664312370096653527812493316677152309225790966160011331063794668285870650775915247674639810530386193307198442659907182469774222928319127246867711569088165745526363107576041881672269115572389847275122925938960041090046647491195695623863743691654997884621532051711781893213552468334551122473742207956970505358880368988849072804594999<351>] |