Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
178: | \[{17^{178}-1\over16}\] | 2 × 32 × 179 × 7121 × 10859 × 1391124231325187854601158067<28> × 79943735756244327721739740331<29> × 1313710937719382635079196676302169528587113<43> × 2171241054689323653068865180801586551155489<43> × 827891560358054421968516454225516554376990149524573368093616518049<66> |