Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 573: | \[{4^{573}-1\over3}\] | 3 × 7 × 383 × 32788207 × 7068569257<10> × 8437952161<10> × 39940132241<11> × 1063307289553<13> × 332584516519201<15> × 390527897582929297<18> × 87274497124602996457<20> × 29489362305514321744929966859<29> × 31777797576236894605233997451651748223054019041<47> × 1046183622564446793972631570534611069350392574077339085483<58> × 42918312276547739963203233515530679548769012405746813903417913563204180538169978298970944021468625193389497<107> |