Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 153: | \[{16^{153}-1\over15}\] | 32 × 7 × 13 × 19 × 37 × 73 × 103 × 109 × 137 × 307 × 409 × 613 × 919 × 953 × 2143 × 2857 × 3061 × 6529 × 11119 × 13669 × 26317 × 43691 × 123931 × 131071 × 2582029 × 4260133 × 318194713 × 1326700741 × 26159806891<11> × 27439122228481<14> × 12458723489217613<17> × 238495197879143209<18> × 75582488424179347083438319<26> |