Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 518: | \[{22^{518}-1\over21}\] | 7 × 23 × 29 × 43 × 149 × 2221 × 3109 × 48397 × 65269 × 86969 × 310727 × 16968421 × 1750161191563<13> × 1886989139768881<16> × 9748223441962188353<19> × 13014653514302412979<20> × 61056841803993327649267<23> × 3795521911775341204317584693<28> × 820886825652257330984559434835061347593188788059698433792613441656133068331662646728863481195965735548349412414357150156797289090788015202021554397185112672202720212422322477475557677670879845437473882757839991622072242307335282811342550649302693443988251<255> × [473452628223722165657815887703470152193019327414815936591236261730376653228574039001732033423000796746730187765068386163312200101822163962274252286812567335954810975443233186203534479600166941692215885144596701217118506682868065513952263040358202108696788445571338106056441329343231<282>] |