Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 383: | \[{5^{383}-1\over4}\] | 525692477729<12> × 2948582111117607147637161465549027541<37> × 4260621080011732733351177066528303869<37> × 1354492180007289973988827240992403128157841807978803698384041173092322450899036561238231<88> × 141859121673416005487576520457022813549276133442472424132316715183883619940396780389749463541861<96> |