Base 14 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 305: | \[{14^{305}-1\over13}\] | 11 × 977 × 3761 × 8053 × 21961 × 51238644631619299<17> × 15351708851050601940923501<26> × 71246710261900509347856740878394240608589<41> × [7118491349390278371615145415754998225023667325773964667980567340732800008238605258254305830024981212049373923102930301892620476807463384006207196272290449277751129028460660792300938156866169469865816607000239558846056069941561996499578680958887965951<250>] |