Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 344: | \[{5^{344}-1\over4}\] | 23 × 3 × 13 × 173 × 313 × 1549 × 9547 × 18233 × 1644512641 × 7866608083<10> × 30185745097<11> × 1628744948329<13> × 2171388367013<13> × 2646713294612838233<19> × 172827552198815888791<21> × 132331554743163541916284364878460504933118649<45> × 1831890377493675613531600527379231981056615892510222098271634062217297884703623956697<85> |