Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 128: | \[{10^{128}-1\over9}\] | 11 × 17 × 73 × 101 × 137 × 353 × 449 × 641 × 1409 × 19841 × 69857 × 976193 × 5882353 × 6187457 × 1265011073 × 834427406578561<15> × 15343168188889137818369<23> × 515217525265213267447869906815873<33> |