Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 143: | \[{16^{143}-1\over15}\] | 23 × 53 × 89 × 157 × 397 × 683 × 1613 × 2003 × 2113 × 2731 × 8191 × 25741 × 724153 × 958673 × 3426853 × 9467173 × 6156182033<10> × 10425285443<11> × 158822951431<12> × 15500487753323<14> × 4170165570896115649<19> × 5782172113400990737<19> × 661521349351105339668937661297<30> |