Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 196: | \[{18^{196}-1\over17}\] | 52 × 13 × 19 × 29 × 197 × 449 × 883 × 1373 × 17837 × 29009 × 80207 × 101921 × 170227 × 211877 × 293413 × 1623833 × 3714397 × 32222107 × 32401295018849<14> × 86651455669280587<17> × 120572959504483361<18> × 834031516079989193<18> × 2034165189468258655789<22> × 139362986236635048339131<24> × 297957358104614004537353754709<30> × 15944803462923633762605952120076033<35> |