Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 140: | \[{10^{140}-1\over9}\] | 11 × 29 × 41 × 71 × 101 × 239 × 271 × 281 × 421 × 3541 × 4649 × 9091 × 27961 × 123551 × 909091 × 3471301 × 4147571 × 13489841 × 121499449 × 60368344121<11> × 102598800232111471<18> × 265212793249617641<18> × 848654483879497562821<21> |