Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 227: | \[{18^{227}-1\over17}\] | 5903 × 12172649 × 45953881 × 1542560380457303<16> × 2272187023861268401<19> × 4497212523300538555189088705457613635628708667498102157253873788940259609099238970017531003445371167646850067798966990409660892405933163705816100339797319495221353900129314014759406547699611455741996985893001440996440648816195484183<232> |