Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 651: | \[{5^{651}-1\over4}\] | 312 × 379 × 1861 × 8681 × 19531 × 148429 × 519499 × 878851 × 4498411 × 511144369 × 42092350189<11> × 1828916514769<13> × 625552508473588471<18> × 172974812463239310024750410929<30> × 32880066613669997886452062118468047118941660083643595052667236211020251230387736755622191604390430911142652289<110> × [5455214087989537742373547575787412220663107899803020767134604417004857457762216151111395817698892799850622613049288431596202672639949198092869691903156762623549702931078479300236264948363160623692836946496952606422216512837231<226>] |