Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 267: | \[{8^{267}-1\over7}\] | 73 × 3344977 × 78903841 × 16960539007<11> × 28753302853087<14> × 1790799748670521<16> × 138732415594618114488007<24> × 618970019642690137449562111<27> × 24124332437713924084267316537353<32> × 2326974010504075618187561564812777<34> × 23487972660406446845443784560326651656336761292054169703452672484634641<71> |