Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 404: | \[{18^{404}-1\over17}\] | 52 × 13 × 19 × 809 × 1213 × 9697 × 811637 × 1789721 × 83303993 × 1872059039 × 2216967373 × 2292936589673<13> × 3649599443759<13> × 32377310801681<14> × 277299490468807757<18> × 743231905853117173<18> × 1742887706977500301<19> × 14736017334293270749<20> × 2774869759829103602071626256997<31> × 18109050910739018194102682075265193<35> × 2010440841790254466728111858936696442769713<43> × 3120760045672245891993850193746073265321382003378819523592853229<64> × 9495834974888871659088190368515488229875583037696618381405931641840116848051<76> × 626388149046557420495518798876779665780160326894968759885306870794312655216755899839222252932407<96> |