Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 609: | \[{19^{609}-1\over18}\] | 3 × 59 × 127 × 233 × 349 × 701 × 2437 × 70841 × 93787 × 1230181 × 1243579 × 2997499 × 17880241 × 20736451 × 30640261 × 68443621 × 297003021451861<15> × 165049085515149863<18> × 1340588661158222617<19> × 8680146187079648246848027<25> × 11357739870145527217679251<26> × 55685492666632025470536467<26> × 195226341215854177931748793376753613984555931113704639700922927<63> × 2272758508051696141097493453670683446064330754368247790379058028142926017112481696873453613601<94> × [270554228092431739404744254996650674954336803307064570771135606357670706282265344806648925207789235732922859936814007569860692219169758137849933027684382107837267807338288991615588622822041805221733879162729714836987375084609977415536311301868058784298671509168993630230567981903049658636138934629983482365799418527222271495408415261028713818125696931400708198592477999316460458960947326080219147108864365816312820533743601<423>] |