Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 283: | \[{5^{283}-1\over4}\] | 1699 × 451669 × 113334709 × 416742821994932569<18> × 33926661157694104397239<23> × 1503555624642039390353881<25> × 8717585253517894966154284413195420314854559<43> × 9980439963766419155720604259927268667421338156316977178671036630602515901<73> |