Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 312: | \[{3^{312}-1\over2}\] | 24 × 5 × 7 × 132 × 41 × 53 × 73 × 79 × 157 × 313 × 2887 × 6481 × 6553 × 7333 × 10141 × 325729 × 398581 × 797161 × 309746737 × 2093124281 × 4795973261<10> × 37644053098601<14> × 271722723752757889<18> × 20795134293690804171286866969789777553<38> |