Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 306: | \[{5^{306}-1\over4}\] | 2 × 33 × 7 × 19 × 31 × 103 × 307 × 409 × 829 × 3061 × 4591 × 5167 × 6427 × 8467 × 90271 × 317731 × 528667 × 6297787 × 26481241 × 41540861 × 466344409 × 45618058027<11> × 60119016343<11> × 654652168021<12> × 360143672909416579<18> × 285963691592722767421088565601855215949<39> × 22444466626277271120628423571194332041248441<44> |