Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 528: | \[{7^{528}-1\over6}\] | 26 × 3 × 52 × 13 × 17 × 19 × 23 × 43 × 67 × 73 × 89 × 181 × 193 × 409 × 661 × 1123 × 1201 × 1321 × 1409 × 3631 × 8713 × 29569 × 169553 × 293459 × 532489 × 1532917 × 2784937 × 10746341 × 12323587 × 678240817 × 83960385389<11> × 98138029441<11> × 2085729338353<13> × 33232924804801<14> × 116320403133001<15> × 1357105535093947<16> × 8206973609150536446402438593<28> × 587453171111898352098840216374214882713731074769<48> × 19435028227333954653583028029666713381693181003335224017<56> × 1643185059975725615301238554131624886234942107630399458372358790712141371513154110396389871857891705679415042089241646481912334099248001<136> |