Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 102: | \[{18^{102}-1\over17}\] | 73 × 17 × 19 × 103 × 137 × 307 × 443 × 133417 × 28281862627<11> × 1895634885375961<16> × 10413571416962911<17> × 7563707819165039903<19> × 12987756239101305138847<23> × 4124844857754113069438689<25> |