Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 361: | \[{18^{361}-1\over17}\] | 6841 × 382919921 × 948248397274417<15> × 3236303411057833<16> × 6089884909802812423<19> × 2213933363048496715416852289<28> × 3597858078215874035017909721<28> × [214737979936283534301385539064064219039222633184909453800083570434341872094759200220559188810616601998366753896145321523318807156932170206985964571515234826649443941831474259648575712265529344995620670421235297564520902183428824719183699607087028841314027530548579751948538391373323270095473088540534512712313365989523345030951295196513<336>] |