Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
185: | \[{5^{185}-1\over4}\] | 11 × 71 × 149 × 2591 × 30810641 × 13971969971<11> × 8737481256739<13> × 21829321837586441<17> × 715560993113581787837326861<27> × 28777599166877704189454473512597567684018827891<47> |