Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 253: | \[{17^{253}-1\over16}\] | 47 × 753113356403<12> × 2141993519227<13> × 8086734305101<13> × 21961228499869434815491<23> × 26552618219228090162977481<26> × 35167671146325087966214222933115593523074442725495358958898991969341218862092745824677354647358429315668351712963347290405849798214650667945855267294016834223952780945152341972962133023518426452682307207388990931281117584493<224> |