Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 282: | \[{8^{282}-1\over7}\] | 33 × 19 × 73 × 283 × 2351 × 4513 × 1681003 × 13264529 × 85693033 × 4375578271<10> × 35273039401<11> × 111349165273<12> × 165768537521<12> × 6596828416459<13> × 646675035253258729<18> × 1617189999730415801728461273583<31> × 65822575300775658772854198368766558032903129506601623<53> × 241158858171883059466688969410187157879210229879717221093613507<63> |