Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 255: | \[{6^{255}-1\over5}\] | 5 × 43 × 239 × 307 × 311 × 409 × 1123 × 1171 × 1201 × 30839 × 26807981 × 927037099 × 20891158391<11> × 23412002806867<14> × 1199699502336395787186091<25> × 94260123386979283872547675418641<32> × 3993904453552726024260724548432749035473152400993554437020747464348255765281<76> |