Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
446: | \[{3^{446}-1\over2}\] | 22 × 19849231 × 249693347977<12> × 3619936401181<13> × 2784009098113351<16> × 54473097204950819531444809<26> × 130559956932626998645445231983<30> × 958622379976383445846399048057<30> × 229523806583019160757328140035039965995090154366780957756461054952218263816107757<81> |