Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 356: | \[{18^{356}-1\over17}\] | 52 × 13 × 19 × 179 × 2137 × 2671 × 3917 × 4273 × 50909 × 956929 × 9134249 × 108692497 × 55549978697<11> × 1412957489047649<16> × 36037321554594103<17> × 2373467556415439369<19> × 5913313191525493627<19> × 43117865855616361729<20> × 17280008471529631881887<23> × 1933225518425821219764654901340101<34> × 55248602049369094679202144729777041<35> × 19707963950138874818292198421797573337<38> × 1447107636250664791821249419059314568773520219<46> × 917763067707252500046093933333944176551829663148496079049<57> × 104930915618443755558595822581760365622417441404871367902434721378929673<72> |