Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 178: | \[{10^{178}-1\over9}\] | 11 × 179 × 497867 × 103733951 × 104984505733<12> × 12147237304901893<17> × 5078554966026315671444089<25> × 403513310222809053284932818475878953159<39> × 4180967272673252032291190917188955510245874180001164839931077197586653<70> |