Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 308: | \[{19^{308}-1\over18}\] | 23 × 5 × 23 × 29 × 181 × 197 × 617 × 701 × 3697 × 5237 × 6469 × 70841 × 73613 × 104281 × 226871 × 774797 × 50515081 × 61170649 × 62060021 × 685034813 × 8090490101<10> × 14533200697<11> × 253239693257<12> × 289300378289693<15> × 226288993450958131<18> × 48381877771677135533<20> × 48565026713061620388848761<26> × 136009377776028563669841133<27> × 77177312600790206536161158681569<32> × 2721470225608282918839875897737801<34> × 6891351405600283178784943929657231943<37> × 683565986584949943193098665649843330062157179334638625282436350819956477<72> |