Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 107: | \[{10^{107}-1\over9}\] | 643 × 999809 × 9885089 × 215257037 × 2386760191 × 511399538427507881<18> × 646826950155548399<18> × 10288079467222538791302311556310051849<38> |