Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 406: | \[{3^{406}-1\over2}\] | 22 × 59 × 523 × 547 × 1093 × 2843 × 6091 × 28537 × 735673 × 5385997 × 20381027 × 398858013926743539066881263<27> × 478952751436011946972423178548637101114935294309822847<54> × 45710553733635551271263934571653147487690442652554544220310250384660059<71> |