Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 240: | \[{10^{240}-1\over9}\] | 3 × 7 × 11 × 13 × 17 × 31 × 37 × 41 × 61 × 73 × 101 × 137 × 211 × 241 × 271 × 2161 × 3541 × 9091 × 9901 × 27961 × 1676321 × 2906161 × 4188901 × 5070721 × 5882353 × 39526741 × 99990001 × 1132716961 × 5964848081<10> × 9999999900000001<16> × 19721061166646717498359681<26> × 281259985248437790051014401<27> × 31388506438433752927908678241<29> × 100009999999899989999000000010001<33> |