Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 552: | \[{7^{552}-1\over6}\] | 25 × 3 × 52 × 13 × 19 × 43 × 47 × 73 × 139 × 181 × 193 × 277 × 409 × 829 × 1201 × 1657 × 3083 × 21529 × 26497 × 26681 × 649981 × 15513961 × 5755716973<10> × 197202518881<12> × 402011881627<12> × 7396787205469<13> × 31479823396757<14> × 1812487089636161<16> × 153943464633957793<18> × 3421093417510114543<19> × 55681942361860463813<20> × 530122269701621893033<21> × 8501948915136155490673<22> × 235169662395069356312233<24> × 569065128438043359786356384350532017<36> × 5068394466355183450313378335551130897<37> × 394399894540487315274641043951942600895513673<45> × 20332436689605900664642707033108702986210146704039368543941071955240225376352665666841232201<92> |