Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 130: | \[{16^{130}-1\over15}\] | 5 × 11 × 17 × 31 × 41 × 53 × 131 × 157 × 521 × 1613 × 2731 × 8191 × 42641 × 51481 × 61681 × 409891 × 858001 × 5746001 × 7623851 × 34110701 × 308761441 × 2400573761 × 65427463921<11> × 108140989558681<15> × 145295143558111<15> × 173308343918874810521923841<27> |