Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 669: | \[{3^{669}-1\over2}\] | 13 × 2677 × 1167176831079433<16> × 3667711380899203564933<22> × 54473097204950819531444809<26> × 114913570893607451412008904866479302563550673<45> × 229523806583019160757328140035039965995090154366780957756461054952218263816107757<81> × 36524539589842697603658277976873319073504486170852455161627362303668092595263530600174357069970109554740451787687381781767979481<128> |