Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 424: | \[{5^{424}-1\over4}\] | 23 × 3 × 13 × 107 × 313 × 24452081 × 5960555749<10> × 17154094481<11> × 28838378869<11> × 27145365052629449<17> × 8871726015923707071209<22> × 599659003321309822423087<24> × 534366212823606171881874993300544219189772104182089<51> × 992546266896549276402616168146585251329055676315885009163311765166575856031713035384955676431972387484913025322167258482406322245836062321<138> |