Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 177: | \[{18^{177}-1\over17}\] | 73 × 1063 × 2833 × 77527 × 19230697 × 4295428888967<13> × 128998224914431<15> × 312278175742409<15> × 198911602474703432401<21> × 39128840454084865858255640571151<32> × 43248746342326974776220539859542695319096743934402365174525703190626872074658849567457090955163307597125999<107> |