Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 104: | \[{10^{104}-1\over9}\] | 11 × 53 × 73 × 79 × 101 × 137 × 521 × 859 × 1580801 × 265371653 × 1058313049 × 1900381976777332243781<22> × 632527440202150745090622412245443923049201<42> |