Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
199: | \[{8^{199}-1\over7}\] | 5066143 × 164504919713<12> × 1445406523039<13> × 4884164093883941177660049098586324302977543600799<49> × 12594263620775680997944097572742389790271497163187368770416979751640789800959731481964821194789929847<101> |