Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 259: | \[{22^{259}-1\over21}\] | 7 × 310727 × 16968421 × 1750161191563<13> × 1886989139768881<16> × 61056841803993327649267<23> × 3795521911775341204317584693<28> × 820886825652257330984559434835061347593188788059698433792613441656133068331662646728863481195965735548349412414357150156797289090788015202021554397185112672202720212422322477475557677670879845437473882757839991622072242307335282811342550649302693443988251<255> |