Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 707: | \[{5^{707}-1\over4}\] | 19531 × 890821 × 5937018283241<13> × 33612396607819<14> × 1739276715009751<16> × 3434487311396589821473854121<28> × 483593153887747265029536907421<30> × 572490101832041198027937861301<30> × [6466533872354464001878446883150323874604606236967717625530676829575241351426374479852316655393374023571277867864130424327447131983809259802585730491873838337024228013058164424310820890949924552614690822880668432392676661816957954057513879150448253353927118664402619471129886565432163440726234783566578170077885106647916328191244318342954312133027677044029<355>] |