Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 377: | \[{18^{377}-1\over17}\] | 79 × 521 × 6463317407<10> × 13414112401<11> × 29759719289<11> × 1505548068007783<16> × 4334473115498111<16> × 98800490511312118297<20> × [148519812431785076576160367456590844689881585123533540158633152628221720079041914281715430322779906065890480603661404883449890580482212609779688020312023545173560667011535978990783888323683605871050357519164602783395059506848194071156036499252450456666931069878581619529533025259345590633813606333865318350649830571647712952539958558088769902179037222457933572763349442633753965285946463<387>] |