Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
285: | \[{3^{285}-1\over2}\] | 112 × 13 × 191 × 229 × 1597 × 4561 × 248749 × 363889 × 1824179209 × 5731756981<10> × 78958087694609321439660131899631<32> × 127374612609671206099801455938838908563158125266771097155261<60> |