Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 816: | \[{3^{816}-1\over2}\] | 25 × 5 × 7 × 13 × 172 × 41 × 73 × 97 × 103 × 137 × 193 × 307 × 409 × 577 × 613 × 769 × 1021 × 1871 × 6481 × 6529 × 12853 × 30091 × 34511 × 40801 × 205633 × 956353 × 5641553 × 23229617 × 49637281 × 129159847 × 1743831169 × 99810171997<11> × 385090502977<12> × 6458150122561<13> × 26226987237313<14> × 3833564416504313<16> × 2670091735108484737<19> × 187668407555352123529<21> × 53958784909638588059956801<26> × 1981703105982814843334309489<28> × 4135411976177385910417311937<28> × 221200680720606092053543425481471681<36> × 60766904630267024548278138793713910203082194253185796129<56> |