Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 555: | \[{5^{555}-1\over4}\] | 11 × 31 × 71 × 149 × 181 × 1741 × 2591 × 3109 × 12211 × 156511 × 834721 × 19852351 × 30810641 × 154402111 × 13971969971<11> × 8737481256739<13> × 21829321837586441<17> × 715560993113581787837326861<27> × 9202869825377571330816454640823938251<37> × 28777599166877704189454473512597567684018827891<47> × 54928520946880307112306785731407655242899973469<47> × 927756758228697650492179167887877072898868641392391<51> × 59701317557684243959419443263797518624541000854772128606624449861336273346883489241<83> |