Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 540: | \[{18^{540}-1\over17}\] | 53 × 73 × 11 × 13 × 19 × 31 × 372 × 41 × 61 × 73 × 109 × 181 × 229 × 271 × 307 × 457 × 541 × 601 × 991 × 2593 × 2711 × 9041 × 15101 × 15121 × 16921 × 23761 × 25309 × 34327 × 145501 × 253369 × 313921 × 465841 × 558721 × 585721 × 771877 × 828811 × 1464049 × 2065501 × 2293111 × 3711529 × 4464073 × 8640109 × 33388093 × 126001657 × 602735041 × 7804804801<10> × 11630180251<11> × 31865908033<11> × 872666624341<12> × 1234749313729<13> × 1756243511461<13> × 157538228874391<15> × 8317058910008581<16> × 7414337897636419261<19> × 19604926044098138791<20> × 336661563382460774011<21> × 2267163273850729470001<22> × 1614949986544027569856891<25> × 2132082728015089056453901<25> × 3658486243767581360997361<25> × 550797593658000576635951641<27> × 1338029376807245057016053427001<31> × 1945921897378998952665556187450033544644808931<46> × 1124132993205151385308066927138559776606178218523861938182530273701<67> × 3558523786008427571954795001468178426030046724482072646783825452539744921<73> |