Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 339: | \[{8^{339}-1\over7}\] | 73 × 3391 × 23279 × 54919 × 65993 × 1868569 × 10113049 × 1066818132868207<16> × 320021624768405574452943847<27> × 4760137992283599860814226997712217<34> × 72386347544037768298632733630815274606848381343<47> × 4321503963921481677500172108448823635181233038594026023927994620145511356639137464894721115529222820231383738196310153837038543004122600981536135508513<151> |