Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 368: | \[{18^{368}-1\over17}\] | 52 × 13 × 19 × 47 × 97 × 113 × 599 × 929 × 1381 × 415381 × 7468009 × 25753561 × 113607841 × 18313945455473<14> × 7309231059435841<16> × 20801237997245359<17> × 5184266309231761249<19> × 222068509026238060237<21> × 5034160949052476449940737<25> × 3913037558632733048069409307<28> × 577719515978349067464415637569<30> × 124292740483707572652291223230113<33> × 520289690568382566967263240224457543382721<42> × 127864101712342097137668847169078985827769332154321627543306932449<66> × 7659489963841743864124355549510594821210115987930530846725712653010278954758623585622695037356823627953410497<109> |