Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 273: | \[{19^{273}-1\over18}\] | 3 × 79 × 127 × 157 × 547 × 599 × 701 × 2731 × 29251 × 70841 × 127219 × 30640261 × 68443621 × 133338869 × 887960971 × 421451911540236097<18> × 26248650404873688767886247971120943<35> × 111372552514164781899670710272036735926703976961131660860368530051797634505591051484642574481<93> × 2923939133206907426947226992559870261889211413242709440924995808714911224479013144291945580251851583490637782276069144016150149467978161269<139> |