Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 537: | \[{7^{537}-1\over6}\] | 3 × 19 × 41887 × 4754599 × 118089523 × 2444517918205807<16> × 149874987000926513705179<24> × 3223380505687866259615790775523177<34> × 497266837132546170846986222422763947941803455307492110202784960974386535259172871239382135887901333030018215532609574830309<123> × [1391212292485685602283867648601527924705769859207617810080434688674415575231895478855660130571811381137928501184453286184805375285633541403959105178271126515442653139833969625755172983380793593092341815281527966161022353749071086673029083<238>] |