Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 270: | \[{5^{270}-1\over4}\] | 2 × 34 × 7 × 11 × 19 × 31 × 61 × 71 × 109 × 163 × 181 × 271 × 487 × 521 × 541 × 829 × 1171 × 1741 × 4159 × 5167 × 7621 × 11071 × 31051 × 164701 × 169831 × 16018507 × 297315901 × 31472682400981<14> × 182517282870121<15> × 60081451169922001<17> × 223823944168266601<18> × 1312315694449748688331<22> × 26941244373060650224561<23> |