Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
475: | \[{3^{475}-1\over2}\] | 112 × 191 × 1597 × 8951 × 363889 × 391151 × 2057701 × 4490080243969653901<19> × 78958087694609321439660131899631<32> × 625495832280435267945442661078487542890944621382679457570696516872405360192329876979748891711455555764539196726457033971587954540387182827268070001<147> |