Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 399: | \[{3^{399}-1\over2}\] | 13 × 229 × 1093 × 1597 × 248749 × 363889 × 368089 × 49279693 × 1068595417 × 1824179209 × 8757948941961838067<19> × 89076199828580322541<20> × 257513776243156826379279929309507<33> × 3519251098301671710969086144776026683467726820830454644076112180241<67> |