Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 267: | \[{18^{267}-1\over17}\] | 73 × 2671 × 70489 × 1412957489047649<16> × 36037321554594103<17> × 2373467556415439369<19> × 17280008471529631881887<23> × 35956310673358159934119<23> × 55248602049369094679202144729777041<35> × [31572961112587828114413366620505856874198322389094480773166934830455184486908310176105896288764600286595371175204884693391891785112125073739007991812348522664809077467932640347291250501041291561<194>] |