Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 315: | \[{3^{315}-1\over2}\] | 112 × 13 × 71 × 181 × 421 × 757 × 1093 × 1621 × 4561 × 6301 × 368089 × 927001 × 1571221 × 1616161 × 2664097031 × 26751945361<11> × 144542918285300809<18> × 335422140063430947448491304902193015341719353456516541680805341<63> |