Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 287: | \[{22^{287}-1\over21}\] | 7 × 16968421 × 1298408911 × 7438474543417<13> × 91902256249183<14> × 4368908587718560589674037478227<31> × [1948750009641847654807118533071336221569303205574546717975341376725804502694427538401608728545222977421194332042210541245935921230687028190224031981909967905083052930774665468750108955768182455099553168042821581614018443357458900584711348183765031299122343000469880244517954008125490565343781827974313057182403<310>] |