Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 430: | \[{5^{430}-1\over4}\] | 2 × 3 × 11 × 71 × 431 × 521 × 1291 × 1549 × 1721 × 9547 × 144982241 × 1644512641 × 7866608083<10> × 1628744948329<13> × 1273316896028212631<19> × 172827552198815888791<21> × 1476723231934366547296339034741<31> × 14100541201973609621116340293054216571892383095715084191<56> × 1863039883083220908744787815823954967842168929014727762342659345237037936896409322508402835718902635373797579083961<115> |