Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 219: | \[{16^{219}-1\over15}\] | 3 × 7 × 13 × 293 × 439 × 877 × 1753 × 3943 × 9929 × 1013533 × 2298041 × 371335727233<12> × 704710824913<12> × 9361973132609<13> × 649301712182209<15> × 9070197542196643<16> × 671165898617413417<18> × 1795918038741070627<19> × 4815314615204347717321<22> × 9444732965601851473921<22> × 142406868765525436670617<24> × 3278244690156222434135906137<28> × 18478609113710122023550126425157<32> |