Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 357: | \[{18^{357}-1\over17}\] | 74 × 17 × 103 × 239 × 449 × 953 × 2857 × 80207 × 304879 × 5616807617<10> × 54458809889863<14> × 156107192084257<15> × 713163686182249<15> × 10413571416962911<17> × 7563707819165039903<19> × 12987756239101305138847<23> × 25567339473808913318119<23> × 142613585494032388107039215098460999999404970478166538519375298212120378883753934210817<87> × [209066808512767580823924282257454848902491800919914981514020148018990397482567831260706621709432113200513965236917043963394682405050634776968942757746697921741149556931832186520882231736041637286773953<201>] |