Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 106: | \[{5^{106}-1\over4}\] | 2 × 3 × 107 × 5960555749<10> × 17154094481<11> × 28838378869<11> × 27145365052629449<17> × 599659003321309822423087<24> |