Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 454: | \[{3^{454}-1\over2}\] | 22 × 28603 × 31327 × 1533148921 × 19907051929<11> × 28279305227149<14> × 75743328083517433389294793<26> × 86695423725589885803695742296342497463<38> × 172082606697351874048297611535769781027854439065671<51> × 586802158643368690388409871761484798763798234696414454735059<60> |