Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 471: | \[{17^{471}-1\over16}\] | 307 × 389989 × 4164583 × 14618899 × 31757647 × 5419552081<10> × 603555176018002387<18> × 582011782134392699583637127<27> × 26726538196083209820047815251675628437744987180360312726583426022965381596321809051301978355052047571084846700773040805245572588557834537971153574097279<152> × [18460433273688374684742343556337752561874723952441438457337487150367565272479530795932756356107173313179024614215188682857200809339692997458299871076467592551716916093512435936643629350568159943692972112005895505870496627493871893277248949525410608389601852019793666287309387606664758301176893375427128676089829356580000300328017645857960435201<344>] |