Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
74: | \[{10^{74}-1\over9}\] | 11 × 7253 × 2028119 × 247629013 × 422650073734453<15> × 296557347313446299<18> × 2212394296770203368013<22> |