Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 285: | \[{5^{285}-1\over4}\] | 11 × 31 × 71 × 181 × 191 × 571 × 1741 × 2851 × 6271 × 30211 × 3981071 × 4113691 × 260930841421<12> × 1245576402371959291<19> × 11600321878916922053491<23> × 11735415506748076408140121<26> × 92757923249442703145312616943985191<35> × 133132985925247870826107995408906787732115039491<48> |