Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 157: | \[{17^{157}-1\over16}\] | 4164583 × 14618899 × 582011782134392699583637127<27> × 26726538196083209820047815251675628437744987180360312726583426022965381596321809051301978355052047571084846700773040805245572588557834537971153574097279<152> |