Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 268: | \[{18^{268}-1\over17}\] | 52 × 13 × 19 × 269 × 107201 × 791137 × 864167 × 100254379 × 156931153 × 8120113241<10> × 14559334701001<14> × 14597889070451<14> × 30099888863129<14> × 14184594510552113<17> × 17412147374909347<17> × 562081533912939823<18> × 10829165718047954727946216809876203820917671<44> × 2619741840153557497513852197518003646043785689<46> × 97059143782790160907162501974316027454019712373414737<53> × 4003274597417201332599561308878915902907702942699407241<55> |