Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 646: | \[{12^{646}-1\over11}\] | 13 × 647 × 2551 × 3307 × 8209 × 118219 × 166669 × 2693651 × 74876782031<11> × 905265296671<12> × 3275970874871<13> × 66900193189411<14> × 29043636306420266077<20> × 558895751949928786907792675124137800780786393<45> × 179134544380790814260416617296669096266685485399301527791299405233<66> × 5769003286651305803708451370791718334214821767858958485128937537875714996001<76> × 47704027827790390120552658308986983054476718396819683800162026007418218104835121018026443116622853443866398637<110> × 3502828357252160633022181338790427657057983056696875249332836783892080252857981638622213204729433392565554175427278979412197165230927373219516480631053996507733953188991420798795273426281719911977068544356974609108804203699449059865823329372679683944222510231421716821487792253966680598033995575847651<301> |