Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 390: | \[{16^{390}-1\over15}\] | 3 × 5 × 7 × 11 × 132 × 17 × 31 × 41 × 53 × 61 × 79 × 131 × 151 × 157 × 241 × 313 × 331 × 521 × 1249 × 1321 × 1613 × 2341 × 2731 × 3121 × 8191 × 21841 × 42641 × 51481 × 61681 × 107251 × 121369 × 409891 × 468781 × 858001 × 1928161 × 5746001 × 7623851 × 22366891 × 34110701 × 308761441 × 723447661 × 2400573761 × 4562284561<10> × 65427463921<11> × 108140989558681<15> × 145295143558111<15> × 8925278993793241<16> × 571403921126076957182161<24> × 720453772427518446437641<24> × 173308343918874810521923841<27> × 84159375948762099254554456081<29> × 134304196845099262572814573351<30> × 166668825096179161138307580471434399036535876481<48> × 115424541509559516007257259482871014508610507896523636650120081<63> |