Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 254: | \[{18^{254}-1\over17}\] | 19 × 63659767 × 476505017 × 11366990729<11> × 44818659041360657<17> × 326813520888984977<18> × 2224113911952795497<19> × 4017882819509660635131381483969043<34> × 47358750787555873799025064603194873102301946840475150471051816112447732103831195229901921<89> × 10002817383964383858272564534650482868779857031826948137888054981068189683389017610552184521565703875426253187714329<116> |