Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 403: | \[{7^{403}-1\over6}\] | 311 × 21143 × 104812241 × 16148168401<11> × 3999088279399464409<19> × 33629697123498329211502958998299487115621359<44> × 159703539091173717215233350675579780103029299243483<51> × 26175688416486887398741753376818809081411302407686668951055921625157455988403035196041300275574195843205497896750369620488690558396085849764715006977588376682727304621070393099850346458586407662010704813<203> |