Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
111: | \[{18^{111}-1\over17}\] | 73 × 223 × 56167 × 157991 × 6613356544591<13> × 2756670060171673<16> × 10375318069755905859690041706382489471961<41> × 9914674020585919507893529088584073241878059013967173977<55> |