Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 512: | \[{3^{512}-1\over2}\] | 210 × 5 × 17 × 41 × 193 × 257 × 12289 × 275201 × 8972801 × 21523361 × 138424618868737<15> × 926510094425921<15> × 3913786281514524929<19> × 153849834853910661121<21> × 891206124520373602817<21> × 1716841910146256242328924544641<31> × 707275264749309881405141965802671548079179711820351316861777644606207216944972589404100097<90> |