Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 288: | \[{5^{288}-1\over4}\] | 25 × 33 × 7 × 13 × 17 × 19 × 31 × 37 × 73 × 97 × 313 × 601 × 829 × 1297 × 2593 × 5167 × 11489 × 390001 × 543097 × 6597973 × 29423041 × 1503418321 × 152587500001<12> × 240031591394168814433<21> × 2739177855667309845605995807633<31> × 12621774483536188886587657044524576122057624161243438720703125000001<68> |