Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
98: | \[{19^{98}-1\over18}\] | 22 × 5 × 197 × 701 × 70841 × 226871 × 167291881 × 51326794793<11> × 59406262713432872236099181572519757<35> × 510095203167924318152120324312866078462380276415979467<54> |