Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 171: | \[{10^{171}-1\over9}\] | 32 × 37 × 21319 × 333667 × 10749631 × 1111111111111111111<19> × 229162071140015324614111<24> × 3931123022305129377976519<25> × 1104249349362995181144668003642191<34> × 3947804137986731797627485905950642878832197147481801<52> |